January/March 2013 - GM Service Insights
Contents
1. DEPENDENT SERVICE CENTERS Genuine EA Parts ACDelco JAN MAR 2013 gt When 4WD Becomes Two Turn to GM Transfer Cases and Actuators 20 533 Chevrolet Soares eee NR New Mini Segment Vehicle o Sune SUM a ds Hed is Fuel Efficient Affordable and Ncw Engine Transmission Combos in Connect amp Cruise Vi aneuvera D e gt TechConnect with more valuable service information M A j a News Alert Genuine GM Rewards expands tc include r powertre Assen blies Ear eC rewards z s i wew GenuineGMParts com CONTENTS GM OE Service Parts Update The latest word on product development and technologies Business of Repairs 11 New ideas that can benefit how your shop operates and profits Genuine Bi REWARDS The Technical Side z earnPOWER wi Discover new ways to approach service and repairs Genuine Ef Parts GM Servicelnsights Online More Genuine GM Parts resources and links Download this issue and past issues of GM Servicelnsights magazine at www emserviceinsights com m GM Servicelnsights Headquarters 2604 N E Industrial Dr 230 N Kansas City MO 64117 E mail dealersupport proactgroup com Compliments of your GM dealer We invite your input and suggestions Please address letters to the editor to the above address Letters submitted imply the right to edit and publish Every effort is made to ensure the accuracy of the i2. Spark is equipped with vented front disc and rear drum brakes for excellent stopping performance and good pedal feel Low rolling resistance tires use a silica compound and revised tread design for a solid road feel and improved fuel efficiency Even though the 2013 Spark is a new vehicle extensive service and repair information resources are a click away at www gmtechinfo com Electronic Service Information Technicians and shop owners can log on to the site to gain access to subscription services for service procedures and repair manuals A complete Service Manual is accessible 24 7 through a subscription to the site Free repair procedures are also available by going to www genuinegmparts com The 2013 Spark was a hit at the SEMA Show last November in Las Vegas Genuine Efl Parts 2013 Spark U S Canada Service Procedures Water Pump and Generator Belt Replacement Special Tools GE 50576 Acoustic Belt Tension Tester For equivalent regional tools refer to Special Tools Removal Procedure Support and raise the vehicle Refer to Lifting and Jacking the Vehicle Remove the front compartment splash shield retainers 2 and bolt 3 3 Remove the front compartment splash shield 1 Remove the air conditioning compressor belt if applicable Refer to Air Conditioning Compressor Belt Replacement Loosen the generator bracket with tensioner nut 1 Rotate the generator bracket with tensioner adjustme
3. Outer Pumping Cell Electrode Sample Tube Exhaust Gas Inner Pumping Cell Electrode Diffusion Gap Upper Nernst Cell Electrode Diffusion Barrier B Oxygen Fuel Reference Air Duct Heater Lean condition one sensor type shown others are similar Compared to a conventional switching sensor using a WRAF sensor informs the ECM of exactly how rich or lean the air fuel ratio is A conventional switching oxygen sensor will only indicate if the air fuel ratio is lean or rich Scan Tool Parameters The scan tool parameters associated with the WRAF sensor is different than the parameters associated with a conventional sensor For a WRAF oxygen sensor the scan tool displays O2 sensor readings in lambda ums Lambda 4 Bank 1 Sensor equals the End TET actual air fuel Bonk 1 Sensor i ratio divided Bank Sensor 2 by the stoi leg lesa chiometric air fuel ratio A lambda value greater than 1 0 indi cates a lean condition and a lambda value less than 1 0 indicates a rich condition a OD Jgtgtus uz Damn 1 C ITA HE a F lt 2 z 13 Lo oe F The scan tool lambda value indicates a lean or rich condition If the ECM detects an excessively lean or rich condition the ECM will set a fuel trim Diagnostic Trouble Code DTO Thanks to Rick Balabon 5 TECHCONNECT ACDelco is updating its service programming and diagnostics application subscriptions by adding a new annual GM
4. ice In some instances this may trans late into decreased dry road traction Increased road noise and shorter tread 7 TEcHCONNECT life Recommend to customers to drive cautiously after switching tires and to get acclimated to the new handling and braking performance characteristics Corrosion Protection of Metal Panels When an aftermarket accessory is installed on a vehicle where drilling holes into metal body panels or sup ports on the vehicle is required it s critical to maintain proper corrosion protection Any time a metal surface is disturbed such as by drilling a hole for a fastener the corrosion resistance of that panel is compromised One of the best ways to protect the fastener to panel mounting holes from future corrosion is to use GM Vehicle Care Super Lube with PTFE Polytetrafluoroethylene This is the only product recommended by GM for the corrosion protection of metal panels where fasteners will be added to metal panels When installing acces sories apply Super Lube to any hole and fastener before install ing the fastener into the drilled attaching hole or inside the metal panel Product Information For free technical assistance and product information regarding specific ACDelco products contact these toll free information hotlines staffed by ASE certified technicians Brakes 1 888 701 6169 prompt 1 Chassis 1 888 701 6169 prompt 2 Clutches 1 888 725 8625 Lift S
5. 48007 0500 On the Web To read and search recent issues of TechConnect online www acdelcotechconnect com click the TechConnect Magazine link or Log in to the ACDelco LMS click the Resources link ACDelco service tips are intended for use by professional technicians not a do it yourselfer They are written to inform those technicians of conditions that may occur on some vehicles or to provide information that could assist in the proper service of a vehicle Properly trained techni cians have the equipment tools safety instructions and know how to do a job properly and safely If a condition is described it cannot be assumed that the information applies to all vehicles or that all vehicles will have that condition All materials and programs described in this magazine are subject to change Submission of materials implies the right to edit and publish Inclusion in the publication is not necessarily an endorsement of the individual or the company TechConnect is published for ACDelco by Sandy Corporation Troy MI 2012 ACDelco All rights reserved ACDelco Featured on Two G ACDelco in association with Federated Auto Parts was recently featured on Two Guys Garage the vehicle repair customizing and restora tion show hosted by Kevin Byrd and Willie B on the SPEED channel The episode Time for a Change 1115 has aired several times recent ly It also can be viewed a
6. Package Subscription 6 ACDelco Support for Tech2Win 6 Tech Tips DD 7 Training Update eee 8 TechConnect Reader Survey Ends Soon 8 New Bi Fuel Pickup Trucks continued from page 1 Fuel mode and CNG level indicator Four lights indicate a full tank approxi mately 3 600 3 100 psi 24 800 21 400 kPa while only one light indicates the fuel level is less than a quarter tank full approximately 1 000 500 psi 6 900 3 450 kPa The driver can press the center of the switch to change fuels at almost any time The fuel mode can be changed almost any time the ignition is ON or the engine is running CNG Fuel Supply The CNG fuel supply and meter ing system consists of the following components e CNG 1 4 turn isolation valve manual shut off valve e Alternative fuel rail pressure temperature sensor e CNG coalescing fuel filter e CNG cut off solenoid valves 2 solenoid valves e Engine Control Module ECM e Excess flow valve e Fill line check valve e Fill filter e Fill valve NGV1 fill receptacle e Fuel injectors injector hoses e Fuel Injector Control Module FICM e Fuel injector rails e Fuel mode switch e CNG fuel pressure regulator e Fuel pump disable module e CNG fuel tank e CNG Fuel Tank Pressure FTP sensor e CNG fuel tank temperature sensor e CNG tank Pressure Relief Device PRD 2 devices e High pressure line and hose stainless steel tubin
7. Quarter in Insights What makes GM s reman process stand out POWERTRAIN WARRANTY 3 years 100 000 miles limited warranty for Genuine GM Parts Engines Warranty covers parts and labor for cataloged applications whichever comes first from date and mileage of installation by an authorized GM Dealer or qualified service center For over the counter sales warranty begins on the date and mileage of retail sale Jan Mar 2013 Servicelnsights Mini Segment 2013 Spark Offers More Though small on the outside Spark offers more appear more sleek aggressive and upscale Spark s wheels passenger and cargo room than other mini cars such as the at the corners stance is further emphasized by standard Fiat 500 Smart Fortwo and the Scion iQ Equipped with the 15 inch aluminum wheels Ecotec 1 25L four cylinder engine and five speed manual transmission Spark offers competitive EPA estimated fuel Powertrain that saves gas economy of 38 mpg on the highway The Spark is powered by an Ecotec 1 25L dual overhead While the Spark looks like a three door hatch designers cam four cylinder engine with continuously variable valve cleverly disguised the rear doors by integrating the handles timing that delivers SAE certified 84 horsepower 64 kW into the C pillar area The technique gives Spark its sporty It is mated to a standard five speed manual transmission appearance without sacrificing five door comfort and utility and a four speed a
8. Vehicle Communication Interface Package The new package includes a 1 year subscription to the Global Diagnostic System 2 GDS 2 and Tech2Win for 750 GDS 2 software is required for communicating and diagnosing new GM vehicles using the GM Global Architecture includes the current generations of the Chevrolet Camaro Equinox Cruze Volt sonic Malibu and Captiva Buick LaCrosse Regal and Verano GMC Terrain Cadillac SRX ATS and XTS It replaces the Tech 2 scan tool GDS2 works with menu driven commands using a standard Windows interface on a Personal Computer PC It enables much more data to be viewed from many different perspectives and offers enhanced data features Tech2Win is a PC based application version of the Tech 2 and CANdi Control Area Network diagnostic interface module To use either GDS 2 or Tech2Win a Multiple Diagnostic Interface MDI tool is required Access to the GM Service Programming system GM vehicle calibrations Tech 2 scan tool diagnostic software updates and GDS 2 software updates are available online through a TIS2Web subscription Every subscription includes access to the ACDelco eBusiness and TIS2Web Helodesk the same assistance provid ed to dealerships for issues with soft ware and programming For assistance call 1 888 212 8959 Thanks to Bob Stewart ACDelco Support for Tech2Win several diagnostic tool manufactur ers have recently added ISO 22900 P
9. a rebuilt or reman product from non OE aftermarket competitors Remanufactured engines offer more bang for the buck than rebuilt engines for customers looking to extend their vehicle life Broader in scope than rebuilds that typically involve simply repairing what may be evidently broken and linked to failure GM remans involve a comprehensive rehab that can include new or restored parts some level of dismantling cleaning remachining testing and updating that can enhance the engine s capabilities For all intent and purposes a reman engine has a new long term lease on life a rebuilt engine can be more of a month to month proposition But not all reman engines are created equal Expertise attention to detail processes know how and intellectual property all come into play in engine restoration and help determine quality and performance Remans from OE manufacturers like GM come with greater assurances that they re near carbon copies of the original engine not products of reverse Continued on page 7 4 3L V6 Reman Engine We Support Voluntary Certification National Institute for AUTOMOTIVE SERVICE EXCELLENCE www ase com n Jan Mar 2013 Servicelnsights Upcoming 2013 Testing Dates 8 Registration March 1 thru May 21 2013 E Testing April 1 thru May 31 2013 E Registration June 1 thru August 21 2013 E Testing July 1 thru August 31 2013 J E i rm ON j l zv b e s The flex
10. fully warranted Under the best scenario a fix might be as simple as replacing the actuator assembly which includes the encoder motor with a new or remanufactured Genuine GM Part Whether new or remanufactured with updates a GM transfer case assembly provides the highest level of functionality and performance for the GM application A full line of new and remanufactured transfer cases covers most applications of trucks and SUVs from 1995 to 2013 With GM transfer cases you get current OE technology in an application where it really counts Remanufactured units which include the actuator assembly with encoder motor are designed to fit GM model year 1995 2009 vehicles The remanufacturing process typically incorporates a range of new generation components spanning snap rings bearings seals chains and synchronizer rings This allows for a simple plug and play replacement solution Whether an actuator assembly encoder motor or entire transfer case assembly is needed a Genuine GM 2007 Chevrolet Silverado LT Z71 Crew Cab Parts solution new or reman is superior to aftermarket alternatives whose desien depends on tricky reverse engineering Specifications on both must be exact to ensure proper performance and desien and construction must be robust enough to work in demanding conditions Devoted 4 wheel drive vehicle owners aren t ones to settle for half a solution So when they roll into your shop looking for t
11. into the GM reman business as partners that lend their expertise to continuously improving the complex multi stage process of remanufacturing engines We bring all of our reman partners into our new engine production facilities so they have the knowledge needed to mimic our quality control machining and other processes LE nord i T call 3 5L Vb Reman Engine Lucas says The relationship with our partners goes well beyond having someone on the outside casually observing what we do internally That level of commitment to quality has helped accelerate the rapid growth of GM s reman engine business GM launched its reman effort seven years ago with two V6 engine families Since then many more have been added and the time frame from production to reman on other engine families is shortening Our goal on glide path from production to reman has been coming down to between 24 and 36 months Lucas says Within two years our target is to have some 2012 model year engines available in reman versions With drivers demanding more of their vehicles and engines today the market for replacement engines is only likely to grow Grabbing a share of that business will require an ability to offer more than just a range of solutions it will demand products that blend quality reliability proven performance and value Few solutions combine all of those attributes better than a GM reman engine Next
12. or Wide Range Air Fuel WRAF sensors were introduced in the late 1990s they have become critical parts of the modern engine manage ment system that is required to meet ever lower emission targets and higher fuel economy goals all without compro mising engine performance WRAF sensors can gauge how much oxygen is in the exhaust stream which enables the Engine Control Module ECM to precisely gauge combustion mixtures and effectively manage the combustion process Wide Range Air Fuel WRAF sensor For a review of conventional heated oxygen O2 sensors refer to the May June issue of TechConnect Enhanced Accuracy WRAF sensors are different from conventional switching oxygen sensors WRAF sensors incorporate both an oxygen pumping cell and the more familiar conventional switching oxygen sensing cell WRAF sensors are a planar type the flat plane shape of the sensing element and consist of an oxygen sensing cell an oxygen pumping cell and a heating element The wiring harness of a WRAF sensor typically has five or SIX Wires As with all oxygen sensors the WRAF sensor measures the amount of oxygen in the exhaust system but measures a wider range more quickly and more accurately This allows the fuel control system to stay closed loop during more conditions than a conventional switching style oxygen sensor including e High power and engine protection modes where enrichment is necessary e During light of
13. size shape texture or color of a known genuine GM airbag module e The letters of the word airbag which are embossed or molded into the vinyl trim cover may not be well defined e The texture of the vinyl material used for the counterfeit air bag trim cover varies from the OEM material e There may be evidence that the counterfeit airbag installer shaved or trimmed the vinyl trim cover for better fit into the steering wheel housing e he inflator assembly is labeled with a different OEM name than the airbag s emblem or intended vehicle brand Identifying Counterfeits Once the airbag module is removed there may be several clues that iden tify a counterfeit airbag module These visual indications may be more useful as opposed to confirming part num bers or molded in identifiers since the counterfeiter may have reproduced a correct part number or have correct molding marks because some portion of the module may be a reclaimed OEM component The following airbag module photo is a confirmed counterfeit part Please note the following A Folded over label B Label tucked behind backing plate C Electrical connectors should match vehicle connectors D Additional holes 4 TECHCONNECT e The caution label applied to the back of the module Is the incorrect size and shape for the module In order to place it in the intended location the label had to be folded over A in two places Additionally caution labels
14. survey about what automotive related service news and information you want most in TechConnect Your input is very important to us Thanks for taking the time to complete To take the survey scan the QR code with the survey your smartphone or go to To help in developing future issues Thanks to Rick Balabon https www onlineconsumersurveys com R aspx a 616 TS PU 0010 12 8 TECHCONNECT Genuine If Parts The Technical Side cont d Cont from page 6 engineering or mere approximations of original quality and specifications When GM backs it in the form of 3 years 100 000 miles warranties OE remans are certain to have been put through the paces Our reman engines are as close to the OE production alternative that you can get The same high level of quality specifications and performance standards that goes into our production engines goes into our remanufactured products Tracy Lucas manager engine service and remanu facturing GM Customer Care and Aftersales GM CCA GM ensures that by elevating the reman engine line to a status on a close par with production engines Reman product specialists work closely with GM Powertrain engineers so that reman engine production benefits from the same knowledge and expertise that goes into new engine development In addition essential Suppliers that furnish engine intake testing parts and engine remanufacturing services are brought directly
15. Cruise debut in 2011 the new entries come with attractive mail in customer rebate offers good for purchases made through Dec 31 2013 Both LSA packages carry a 750 rebate all of the others qualify for 500 rebates Connect amp Cruise simplifies both the process of selecting and ordering performance powertrain packages and installing them By specifying just a single part number enthusiasts looking to uperade to an OE performance solution get a matched engine and transmission combination as well as electronic modules wiring harnesses torque converters and other components required for a complete installation It s a turnkey operation for the customer says David MacWebb product specialist with Chevrolet Genuine fff Parts Performance Instead of having to eo out and buy every separate piece or go the aftermarket route we offer a complete package that offers the convenience of a crate engine solution and the assurance of factory validated performance along with the certainty that all of the parts will work together seamlessly Solid demand for the initial Connect amp Cruise entries as well as an interest in incorporating the E ROD into the mix led Chevrolet Performance to expand offerings in the product lineup We ve had a very positive response and there was a lot of buzz about Connect amp Cruise at last year s Specialty Equipment Market Association s SEMA show where we displayed some of the packages MacWebb s
16. DU API International Organization for Standardization 22900 Protocol Data Unit Application Programming Interface functions and software hardware to their SAE J2534 diagnostic scan tools These companies may state that the new software hardware allows their J2534 devices to use Tech2Win the PC based application version of the Tech 2 and CANdi Control Area Network diagnostic interface module which is built on the ISO 22900 PDU API standard Technicians requiring technical support for these non GM tools should direct inquiries to the tool manu facturers ACDelco offers support for the Tech 2 scan tool and Multiple Diagnostic Interface MDI tool but GM Calibration and GM Calibration and Diagnostic Software Software Complete GM Service Support 3 100 per year Package GM Service Information TIS2Web All Acccess GDS 2 and Tech2Win Tech 2 and Service 1 395 per year Programming Package Tech 2 diagnostic software updates Tech 2 View Tech 2 Snap Shot Service Programming Software and Tech2Win Service Programming Only 55 for 2 days Vehicle calibration software E E s Tech 2 Tech 2 Diagnostics 750 per year Tech 2 diagnostic software updates GM Global Diagnostic System 2 55 for 3 days Diagnostic software for GM o DS M Global A vehicles Tech2Win 55 for 3 days Tech 2 software on a PC GM Vehicle Communication 750 per year Interface See a GDS 2 and Tech2Win software 2 and T
17. X the flow of CNG The front CNG cut off solenoid valve 1 is integrated with the CNG fuel pressure regulator assembly The rear high pressure CNG cut off solenoid valve 2 is located near the CNG fuel tank outlet A 40 micron filter is integrated with the fill valve to help prevent contami nates from entering the CNG fuel sys tem during refueling When the filter becomes restricted the amount of time required to refill the CNG tank will Increase The CNG fill valve receptacle is a NGV1 profile and mates to any NGV1 fill dispenser valve The fill dispenser seals to the receptacle with an internal O ring The fill valve is mounted in the side of the CNG fuel tank cover Remove and reinstall the fill valve dust cover when refueling 3 TEcHCONNECT uys G arage college bound daughter A complete roster of maintenance and repair com ponents are used on the car along with a few ACDelco tools including our latest inspection camera Product highlights include ACDelco Professional DuraStop brake components and an ACDelco Professional Silver battery Be sure to check out this great episode and share it with your ACDelco customers Thanks to Curt Collins For more information about ACDelco timing chain replacement kits contact your local ACDelco representative hanks to Rick Balabon New Bi Fuel Pickup Trucks continued from page 2 The CNG fuel tank located at the front of the truck bed is constr
18. aches a pre deter mined operating temperature it seam lessly switches over to the CNG fuel system If the CNG fuel is depleted the ACUC CO ta cConnect system automatically switches over to the gasoline system A minimum gasoline level of at least one quarter tank should always be main tained To protect engine components a switch to gasoline may occur at any time The vehicle will not start if the engine stalls due to a lack of gasoline Switching Between Fuels The CNG fuel mode switch and LED fuel gauge is located on the center of the instrument panel The CNG fuel gauge indicates how much CNG is left in the tank CNG quantity is affected by changes in fuel temperature and fuel pressure The single light at the top of the switch indicates which fuel system mode is currently in operation Red indicates gasoline mode and green indicates CNG mode When the sys tem is changing from gasoline to CNG the indicator will turn orange for a few seconds Four lights are at the bottom of the switch The number of illuminated lights indicates the CNG fuel level continued on page 2 IN THIS ISSUE New Bi Fuel Gasoline and CNG Pickup Trucks 00 1 ACDelco Featured on Two Guys Garage 3 Complete Timing Chain Replacement Kits Available E 3 Counterfeit Airbag Modules 4 Wide Range Air Fuel Sensors 5 New GM Vehicle Communication Interface
19. ays Connect amp Cruise rebates available only to the end user come in the form of VISA prepaid cards that can be used like cash at merchants that accept the card Customers must fill out a rebate form supplied by the Chevrolet Performance dealer supplying the product and furnish copies of the invoice repair order Connect amp Cruise SATO PHOnSEP UTFLAdPRI ERUNT jus AC z T L ba uu kh 4 a Fd i j L NU aab Sv Ses ds eae m nir le nes E a a Re lie re Jan Mar 2013 Servicelnsights E ACDelco TECHCONnNect SPECIAL INSERT The Technical Side Genuine GM Parts Out Front in Remanufactured Engine rena They say you can never go home again but thousands of installed GM engines are proving that s not always so The lucky ones those that haven t been terribly abused or heavily damaged do return home in a sense entering the rigorous GM rehabilitation program that can lead to another life as GM remanufactured engines But the luck really is with the GM vehicle owner and the independent service center that may have the opportunity to install a GM reman engine Painstakingly refurbished and updated competitively priced and carefully crafted to restore or even exceed original factory condition a GM reman engine is the next best thing to a new GM engine In today s market they re an especially attractive alternative to not only new but also
20. be in terms of filling out extensive and cumbersome paperwork and following exact procedures So we desiened the redemption process of the program from the inside out in a sense putting ourselves in the position of the busy ISC that loves rewards but often hates the process of claiming them Eligible GM Powertrain Assemblies and Component parts span a broad mix of those commonly used in major vehicle repairs For more information on the Genuine GM Rewards program talk to your GM dealer or visit WWW genuinegmparts com Genuine fl REWARDS Each Reward Point 51 Genuine ET Parts Jan Mar 2013 Servicelnsights 11 Genuine f Parts We re one stop For your shop Genuine GM Parts Engines and Transmissions Plus all the Powertrain Components you need o A Bm S CLIP AND PLACE BY YOUR TELEPHONE Genuine r1 Parts Give us a call for all of your Genuine GM Parts needs all at one convenient location
21. e Repair Manuals By following the proper repair procedures technicians can ensure that each vehicle maintains its solid performance and uncompromised Safety features for the life of the vehicle Genuine I Parts Business of Repairs Powertrain Assemblies Added to Genuine GM Rewards No hoops hurdles long forms or frustration induced short fuses When you buy qualifying GM Powertrain Assemblies Engines and Transmissions and Components that are eligible for rebates under the new Genuine GM Rewards program claiming your reward is simple receiving them is certain In designing the loyalty program which gives reward points for purchases of GM Powertrain Components and Assemblies Genuine GM Parts PRODUCT REWARD Powertrain Components 4 of Dealer List made it very user friendly Rather than filling out and sending forms purchase orders receipts Engine Transmission Assemblies 50 Pts and the like Independent Service Centers ISCs establish a personal ID and on line wallet at www genuinegmrewards com after securing enrollment credentials from their GM dealer Qualifying purchases are automatically calculated for the reward logged and deposited monthly into a personal account that s viewable 24 7 A reward is only as good as the ability to both actually obtain it and use it for something of value says John Eck marketing manager for GM Customer Care and Aftersales We know how frustrating some rewards programs can
22. ech2Win software does not provide support for non GM tools ISO 22900 specifies the EN common software interface for em eren diagnostic software applications Eej dp wo The purpose of the standard FO 1 2 is to ensure that an applica 32 Megabyte fa 4 5 tion can operate on a common amp 7 8 interface to communicate with a ruas LENTEN ko continue r9 exit ener Lula ii iicen Opera bom Eh mzz 4 maj o Go to www acdelcotechconnect com and click the GM Service Information link on the left side of the home page for more information manufacturer s network protocol and vehicle bus systems seer pwr Tech2Win can be loaded onto a service center s Personal Computer PC or notebook computer through a TIS2Web subscription A MDI tool also is required Using Tech2Win enables technicians to take advantage of the computer power of the PC or notebook computer and the speed of the MDI providing faster operation than a Tech 2 For Tech 2 and MDI technical support contact the ACDelco eBusiness and TIS2Web Helpdesk at 1 888 212 8959 hanks to Bob Stewart 6 TECHCONNECT lechlips The following technical tips provide repair information about specific conditions on a variety of vehicles If you have a tough or unusual service repair the Diagnostic Hotline can help Call 1 800 825 5886 prompt 2 from 8 a m to 8 p m ET Monday Friday to speak with a technical expert with
23. ely priced repair parts available under the Bump The Competition BTC program At the end of 2012 about 150 distinct radiator and condenser part numbers were available with BTC pricing A great repair job means using quality parts and outside That s why the quest for OE replacement parts like those from Genuine GM Parts shouldn t stop with door handles headlights and the like One prime example is vehicle cooling system parts like radiators and condensers While it s tempting to consider non OE aftermarket solutions offered by GM dealers you re risking inadequate matching subpar performance Our plan is to get more aggressive in the cooling system and installation headaches all for questionable savings component area by emphasizing pricing as well as the Now with GM Customer Care and Aftersales GM CCA message that if you re an ISC don t think about OE just renewed emphasis on putting more OE radiators and in terms of the sheet metal parts Carter says If you re condensers into the hands of Independent Service Centers repairing a GM vehicle and the aim is to get it back to original ISCs there s no excuse not to eo with the very best quality don t forget about quality when it comes to these GM CCA has been ramping up production and availability internal parts of radiators and condensers for scores of GM vehicle applications spanning dozens of popular models and Variables like fin counts and tube sizes which a
24. f or after start modes reducing cold start emissions Depending on the application the fuel control system status will still go into open loop during some operating conditions e g deceleration faulted states Sensor Design The WRAF sensor heater is pulse width modulated and is used to keep the sensor around 800 C with an operat ing range of 600 C to 950 C Temperatures over 950 C can damage the sensor A trim resistor is incorporated into the WRAF sensor connector to calibrate the sensor during assembly The trim resistor is either laser etched or added into the connector at the end of the manufacturer s assembly line to change its resistance and output current The overall effect shifts the sensor output response to the appropriate level specified for the application During engine operation the exhaust gas travels through the diffusion barrier into the diffusion gap between the sensing cell and the pumping cell The ECM will keep the diffusion gap mixture at lambda value of 1 14 7 1 air fuel ratio by pumping oxygen ions into or out of this gap using the pumping cell The ECM determines how much pumping current is needed by monitoring the oxygen sensor sensing cell value A lambda value of 1 corresponds to a conventional sensor reading of 450mV Therefore the required pumping current is an indicator of how rich or lean the exhaust gas is at any particular time Wide Band Lambda Sensor Design Lean Air Fuel Mixture
25. ffect a unit s model years The components are all new not repaired or remanufactured and are built to the exact specifications and performance specifications that defined the products when they were originally installed While it s easy to think of a vehicle cooling system as comparatively low tech it s one that s integral to a vehicle s performance and protection and thus shouldn t Dan Carter A C manager GM CCA be dismissed As with other Genuine GM Parts radiators cooling capacity are an example of where an OE product excels It s vital that a repair involving radiators or condensers maintain the cooling capacity that the vehicle was built with Reduced fin counts and different tube sizes can impact that and that s what can happen with aftermarket versions 4 Jan Mar 2013 Servicelnsights Connect amp Cruise Grows by 6 New Engine Transmission Combos For 2013 Chevrolet Performance is adding six new factory engineered engine transmission combinations to its lineup of easy to order and install Connect amp Cruise Crate Powertrain Systems Joining the LS3 6 2L 430 hp product and the LSA supercharged 6 2L 556 hp package introduced in 2011 are two emissions compliant E ROD versions of those packages as well as four LC9 5 3L 315 hp packages a 2WD and AWD version as well as E ROD versions of each of those 750 and 500 Rebates Available Like the initial products introduced with the Connect amp
26. g and stainless steel jacketed PTFE hose e ED fuel gauge e Low pressure fuel line and hose stainless steel tubing and stainless steel jacketed PTFE hose The high pressure fuel system is equipped with a manually operated 1 4 turn isolation valve manual shut off valve located in the high pressure supply line near the CNG fuel tank out let on the driver s side of the vehicle The purpose of the valve is to isolate the high pressure side of the fuel sys tem for some service procedures If this valve is inadvertently left in the OFF position the vehicle will not operate in CNG mode Turn the manual shut off valve 90 degrees to turn OFF the CNG The coalescing fuel filter is located between the front CNG cut off solenoid valve 1 and the 1 4 turn isolation valve manual shut off valve It contains a 6 micron filter element and a drain fitting The filter is designed to trap contami nates and liquids that may damage the fuel injectors It must be periodically inspected drained and replaced CNG Operation The FICM controls the three operat ing modes of the bi fuel system In gasoline mode the fuel injector and fuel pump control signals are bypassed through the FICM to the proper compo nents allowing the vehicle to operate the same as a conventional vehicle In change over mode the FICM supplies voltage to the CNG cut off solenoid valves opening them at the CNG fuel tank and the pressure regu lator which allow
27. have never had the airbags replaced are not at risk Vehicles purchased new that have had the air bags replaced with genuine GM airbags at an authorized dealer new car sales also are not at risk For all other scenarios a physical inspection may be the best way to iden tify whether the airbag module installed is the proper Original Equipment Manufacturer OEM airbag Based on the information provided to GM the counterfeit airbag modules are being manufactured from a collection of reclaimed components with some new or remanufactured parts Due to this piecing together of available parts there may be a wide variety of appear ance and functional differences between each individual counterfeit module Inspection When inspecting an airbag module it s necessary to remove the module to evaluate whether it is an authentic GM part The following are immediate signs of a possible counterfeit module e The airbag light should illuminate during key on and turn off after the vehicle is started A glowing airbag light indicates a functional problem with the airbag module The lack of an airbag light during key on may indicate the bulb has been disabled to prevent the customer from being alerted to a problem with the module e The vehicle horn should function A lack of a horn may indicate the air bag module horn contacts are incorrectly placed or missing from the module e he emblem on the airbag cover may not match the
28. he other half of their 4 wheel drive don t go halfway Choose the competitively priced technologically superior Genuine GM Parts solution and make your customer whole again WARRANTY GM Powertrain Components are covered Dy a 1 year 12 000 miles limited warranty for cataloged applications and transfer case assemblies are covered by a 3 years 100 000 miles limited warranty whichever comes first from date and mileage of installation by an authorized GM Dealer or qualified service center For over the counter sales warranty begins on the date and mileage of retail sale Jan Mar 2013 Servicelnsights E GM OE Service Parts Update cont d Using Real Genuine GM Radiators and Condensers Ensures Quality and Functionality Like beauty quality is more than skin deep and condensers carrying the GM name are built to exacting 7 E l specifications and incorporate design engineering and in the context of repairing damaged vehicles construction that aftermarket competitors can t match By comparison there s no cutting corners in the manufacture of GM radiators and condensers But and expert installation everywhere inside there is some cutting of cost underway Eager to capture more of the ISC demand for cooling system components GM CCA is working to offer many part numbers in the radiators and condenser line ata price competitive with aftermarket suppliers Many of them are included in the list of highly competitiv
29. ibility of choosing a different fuel altogether may be the best choice in the ongoing battle with unpredictable fuel prices In the new 2013 Chevrolet Silverado and GMC Sierra 2500 HD bi fuel pickup trucks gas is gas whether it s gasoline or Compressed Natural Gas CNG and either fuel can be used with the push of a but ton The 6 0L V8 engine can run on gasoline or CNG and seamlessly transitions between the two fuels without any loss of performance or fuel economy The CNG and gasoline tanks have a combined range of 650 miles The bi fuel system is designed for primary operation on CNG as long as there is sufficient fuel in the CNG fuel tank The trucks feature a 17 5 GGE gasoline gallon equivalent 66 2 L CNG tank and a 36 gallon 136 2 L gasoline tank The 6 0L V8 engine uses an Engine Control Module ECM with both gaso line and CNG calibrations to ensure all engine operating parameters are within acceptable performance operating limits The engine is designed to meet strict Environmental Protection Agency EPA and California Air Resources Board CARB certification It features a gasoline fuel injection system and a CNG fuel injection system The hardened bi fuel engine provides the same durability as a gasoline only engine The hardened engine compo nents for CNG fuel use include hard ened intake and exhaust valve seats and hardened exhaust valves The engine always starts on gasoline When the engine re
30. imulation SIM SIMs require users to complete all repairs for a condition click Take Training gt Simulations to view the catalog and select a diagnostic challenge simulation i viu F Ja i Dr 2 Fam Ji n Gy Cr JF us i F2 UE c M ade 05 r0 On 9 Vso on O Current Instructor Led Training Courses The following ILT courses are currently being scheduled Course Number S AC07 03 01ILT S BK05 01 01ILT S BK05 02 01ILT S EL06 04 021LT S EL06 10 021LT S ELO6 11 02ILT S EL06 12 011LT S EL06 13 011LT S EL06 14 011LT S EP08 02 01ILT S EP08 03 011LT S EP08 04 011LT S EP08 05 01ILT S EP08 06 011LT S EP08 08 011LT S EP08 09 011LT S EP08 81 011LT S EP08 81 021LT S SS04 01 01ILT S ST10 01 01ILT Course Name HVAC Control System Operation and Diagnostics Braking Systems ABS Operation and Diagnosis Network Communication Diagnosis Electrical Power Management Enhanced Automotive Circuit Diagnosis Hybrid Technology and Service Body Electrical Global Diagnostics Advanced Body Control System Electrical Diagnostics Engine Performance Computer Controls and Ignition System Diagnostics Engine Performance Air Induction and Fuel System Diagnostics Engine Performance Fault Monitoring and Emission System Diagnostics Engine Performance Advanced Drivability Diagnostics After Combustion Sensors Evaporative Emissions Controls Spark Generation Duramax 6600 Diesel Engine Performance Duramax Diesel Operation and Diagnosis Vib
31. ll the front compartment splash shield 1 10 Jan Mar 2013 Servicelnsights Install the front compartment splash shield retainers 2 and bolt 3 1 0 Tighten the bolt 3 to 9N m 80 Ibin 1 1 Lower the vehicle Air Conditioning Compressor Belt Replacement Removal Procedure Remove the right front compartment splash Refer to Front Compartment Splash Shield Replacement Cut the air conditioning A C belt 1 with a appropriate cutting tool as shown Remove and discard the air conditioning A C belt 1 Installation Procedure Position a NEW air conditioning A C belt 1 on the crankshaft pulley 3 and air conditioning A C compressor 2 as shown rot Using a socket and ratchet on the crankshaft pulley bolt 4 rotate the crankshaft in the direction of the arrow until the belt 1 is fully installed on the air conditioning A C compressor 2 After the belt is on the air conditioning A C compressor pulley 2 rotate the crankshaft 3 an additional complete revolution and ensure the air conditioning A C belt 1 is fully seated on the crankshaft 3 and air conditioning A C compressor 2 Install the front wheelhouse liner inner front extension Refer to Front Compartment Splash Shield Replacement This example of Water Pump and Generator Belt Replacement and Air Conditioning Compressor Belt Replacement for the 2013 Chevrolet Spark is just one of many found in their Servic
32. nd to provide less traction Winter tires may enhance winter driving in these conditions GM performance oriented vehicles that are rear wheel drive take advantage of the natural weight shift rearward during acceleration increasing dry road traction on the driven wheels Rear wheel drive also contributes to neutral steering as it takes the burden off the front wheels to both power and turn the vehicle The connection between the steering and the powertrain is also eliminated removing any tendency for engine power to influence the steering under heavy acceleration or rough roads Generally front wheel drive vehicles offer additional winter traction due to the weight of the engine transaxle sitting directly above the driving wheels and are found to be satisfactory for winter driving when factory equipped with all season tires On all vehicles if a decision is made to switch to winter tires all four tires must be replaced When selecting winter tires keep the same size and aspect ratio as the original equipment tires unless otherwise directed by the manufacturer Deviating from the origi nal size may create clearance issues speedometer error and or alter the handling characteristics of the vehicle If winter tires are not available in the same speed rating as the original equip ment tires do not exceed the speed rating of the winter tire chosen Winter tires in general are optimized for increased traction on snow and
33. nformation in the offers contained in this magazine However printing and typographical errors may occur These are not intentional and are not the responsibility of GM any GM dealer or the companies or individuals who create produce and distribute this magazine Offers and pricing may change at any time without prior notification The descriptions and specifications in this publication were in effect at the time of approval for printing General Motors reserves the right to change specifications without notice and without obligation Published letters do not necessarily reflect the opinions of General Motors or General Motors Parts General Motors Detroit MI 48202 2013 General Motors All rights reserved E Jan Mar 2013 Servicelnsights Genuine I Parts GM OE Service Parts Update When 4WD Becomes Two Turn To GM Transfer Cases Actuators and Encoder Motors With winter bearing down across much of the nation now may be a good time to anticipate customers asking Where s the four wheel drive in my four wheel drive vehicle After months of sitting idle an old and exposed actuator encoder motor may hesitate to cooperate Without a nicely tuned actuator encoder motor there s no smooth on demand drive transition when the surface calls for four wheel drive For GM vehicles Genuine GM Parts new or remanufactured transfer cases actuators and encoder motors are the very best option for ensuring satisfied customers and are
34. nt bolt 2 12 full turns counterclockwise to relieve the belt tension Remove the water pump and generator belt 3 Installation Procedure Install the water pump and generator belt 3 Apply tension to belt by rotating adjusting bolt 2 12 full turns clockwise Jan Mar 2013 Servicelnsights E The Technical Side cont d Tighten the generator bracket with tensioner nut 1 to 55 N m 41Ib ft 4 Rotate engine one full revolution Use GE 50576 acoustic belt tension tester to measure the drive belt tension 5 1 Locate GE 50576 acoustic belt tension tester near the center of the belt span between the water pump pulley and crankshaft pulley 5 2 Locate a finger on the center of the belt span between water pump pulley 1 and crankshaft pulley 2 Pluck the belt between the water pump pulley and the crankshaft pulley Repeat 3 times to get an average tension result on GE 50576 acoustic belt tension tester 5 3 The drive belt tension should be set to the following specification Specifications e Used belt 261 272Hz New belt 319 330Hz If the measured belt tension does not meet specification please repeat step 2 5 Definition Used belt Vehicle driven for greater than 10 miles New belt New service parts with the vehicle driven less than 10 miles Install the air conditioning compressor belt if applicable Refer to Air Conditioning Compressor Belt Replacement Insta
35. ny time on http twoguysgarage com Click the Episodes link to search for the show On this episode a 2003 Cadillac CTS with 117 000 miles is inspected and repaired before it is transferred to a Complete Timing Chain Replacement Kits Available ACDelco has introduced complete Original Equipment Service timing chain replacement kits for 2007 2012 GM high feature V6 engines The kits which include all the components needed to replace the timing chain incorporate all of the latest product updates design upgrades and any service bulletin con cerns issued since the original engines went into service Kits include the primary and second ary timing chains bolts seals and seal kits tensioners and gaskets All parts in the kits are 100 percent new and are backed by a 12 month 12 000 mile warranty CNG manual shut off valve The valve is shown in the ON position timing calculations to ensure proper engine performance The Tech 2 MDI scan tools are used for vehicle diagnosis Diagnostic Trouble Codes DTCs are the same as with gasoline only engines There are two cut off solenoid valves When they are not energized these solenoids close an internal valve to block The part numbers and applications are ACDelco Kit Application Number 12650230 2007 models RPO LY7 LP1 12650231 2008 2012 models RPO LY7 2010 2012 models RPO LAU 12651450 2008 models RPO LLT 2010 models RPO LF1 LFW LF
36. ration Correction Diagnostics Supplemental Restraint Systems Current Virtual Classroom Training Courses The following VCT courses are currently being scheduled Course Number S AC07 02 01VCT o AC 07 03 01VCT S EL06 03 01VCT S EL06 04 01VCT o EL06 06 01VCT o EL06 07 01VCT Course Name HVAC System Operation and Service Hints HVAC System Flushing Recovery and Diagnostics serial Data Communication Networks Communication Network Diagnosis Two Mode Hybrid System Safety and Special Tools Two Mode Hybrid System Diagnosis and Repair Training Schedule S EM01 02 01VCT S EM01 03 01VCT o EP08 01 01VCT S EP08 02 01VCT S EP08 03 01VCT Active Fuel Management Operation Active Fuel Management Diagnosis 6 6L Duramax Engine Diagnosis 6 6L Duramax LMM Diesel Engine 6 6L Duramax LGH and LML Diesel Engines To search for currently scheduled courses in your area view the Training in Your Area section on the Home page Select search terms from the dropdown menus and click the Submit button Thanks to Greg St Aubin TechConnect Reader Survey Ends Soon TechConnect provides technicians with the latest technical news and informa tion from ACDelco and the automotive industry We cover a wide range of top ics including technical information and programs from ACDelco GM Professional Service Center Program partners tool Suppliers and more of TechConnect we d like to hear from you Go to the link below to take a short
37. s the CNG system pressure to adjust to the normal oper ating pressure from the tank to the injectors The FICM will then switch off the gasoline injectors sequentially beginning with cylinder 1 The appro priate CNG injectors are switched on sequentially as each gasoline injector is switched off Once the engine is operating in CNG mode the gasoline fuel pump is switched off by the FICM The ECM performs all injector pulse and ignition continued on page 3 2 TECHCONNECT ACUelco Volume 19 Number 6 TS PU 0010 12 ACDelco TechConnect is published bi monthly and online for Independent Service Centers and Key Fleet accounts to provide timely service information increase knowledge and improve the performance of the service center ACDelco 360 represents our mission to look at our businesses at every possible angle to provide value and assistance to our distributors and their customers as well as offer a full circle of support with programs tools training and marketing focused on enhancing and growing our partnership successfully Publisher Rick Balabon ACDelco E mail lt richard balabon gm com Editor Greg St Aubin ACDelco E mail lt gregory staubin gm com Technical Editor Mark Spencer E mail lt mspencer gpworldwide com Production Manager Marie Meredith Desktop Publishing 5byb Design LLC E mail lt gt dkelly 5by5dzign com Write to 4 ACDelco TechConnect P O Box 500 Troy MI
38. the latest OEM information Timing Belt Installation 2001 2005 Honda Civic equipped with the 1 7L 4 cylinder engine Incorrect tensioner position and Improper belt tension can result in a violent correction of the tensioner position and damage to the tensioner spring and belt Improper belt tracking also can cause interference with other components Improper belt setup turning the crankshaft clockwise during initial setup can damage the tensioner spring The spring must be in the up position noted on the spring rubber dampener During setup the crankshaft must be rotated two turns counterclockwise with the locking pin in the tensioner and the attachment bolt loose Rotate the crankshaft two turns counterclockwise In addition for 2001 2003 models a longer fastening bolt may be required Honda upgraded the timing belt ten sioner assembly in late 2002 The bolt length was increased to 54mm to allow for proper thread engagement The lt Old Bolt 50 6mm New Boit 54mm gt Old bolt 50 6mm New bolt 54mm ACDelco kit follows the design change and includes the updated bolt Winter Tires Many late model GM high perfor mance vehicles are factory equipped with tires that are optimized for maximum dry and wet road perfor mance while still retaining satisfac tory tread life durability and low noise levels In severe winter climates where snowfall may be significant these tires may be fou
39. ucted of aluminum liner wrapped in carbon fiber and conforms to NGV2 2000 Type 3 specifications The CNG cut off solenoid valve 2 is threaded into the outlet end driver side of the fuel tank and is used to prevent fuel flow during non opera tional running conditions The service life of a Type 3 CNG fuel tank is 15 years from the date it was manufactured Metal shields are used to protect the tank from road debris or other contact conditions that may occur All service parts including the gaseous fuel components are available through the GM parts distribution system Thanks to Sherman Dixon and Chris Graham Counterfeit Airbag Modules The National Highway Traffic Safety Administration NHTSA recently issued a consumer safety advisory to announce that counterfeit airbags have entered the U S from China Counterfeit airbags may not deploy or perform in the same manner as GM supplied replacement airbags GM strongly recommends that suspected airbags be replaced A unique GM customer assistance phone number has been established to answer owner questions Concerned customers in the U S may call 1 866 237 3601 GM service bulletin 12 09 41 001A can help in the identification of counter feit airbag modules for the GM vehicles identified by NHTSA that may be affect ed which include the 2010 2011 Buick LaCrosse 2006 2010 Chevrolet Aveo and 2011 2012 Chevrolet Camaro Cruze and Volt Vehicles purchased new that
40. upports 1 800 790 5438 Shocks 1 877 466 7752 Starters and Alternators 1 800 228 9672 Steering Pumps Rack and Pinion Gears 1 866 833 5567 Wiper Blades 1 800 810 7096 TrainingUpdate How to Take ACDelco Training Go to www acdelcotechconnect com and click the Training tab to log in to the ACDelco Learning Management System LMS e To enroll in courses in your training path open the home page to view your Training Progress Status Report select Click Here to Show Detail and then click the course number and title to view details on a specific course and to launch or enroll in the course e To enroll in an Instructor Led Training ILT course ILTs are full day hands on classroom courses click Take Training gt Instructor Led Training to view the cata log and select a specific course e To enroll in a Virtual Classroom Training VCT course VCTs are 1 2 hour live online courses click Take Training gt Virtual Classroon Training to view the catalog and select a specific course e To launch a Web Based Training WBT course WBTs are 1 4 hour self guided online courses click Take Training gt Web Based Training to view the catalog and select a specific course e To launch a TechAssist TAS course TAS courses are 15 20 minute online presentations on a specific topic click Take Training gt TechAssist to view the catalog and select a specific course e To launch a S
41. utomatic transmission is available A wheels out body in stance stretched windshield The Spark achieves an EPA estimated 34 mpg in accentuated by a single arc roofline body color front door combined city and highway driving with the manual handles and body sides free of cladding make the Spark transmission and 32 mpg with the automatic transmission Jan Mar 2013 Servicelnsights 2013 YAM MX2 Five Speed FWD Manua Transaxle sm 2018120 E4 LLO Engine It also uses regular unleaded fuel while the Fiat 500 requires premium fuel The engine was developed using best practices from GM Powertrain technical centers For North America its displacement was enlarged slightly over other markets 1 2L displacement giving the engine more mid range torque that translates into a greater feeling of power on the highway It also combines competitive performance with sophisticated technologies such as dual continuous variable cam phasing and an electronically controlled thermostat to give customers a low maintenance engine with reduced emissions Spark s body frame integral structure is tight and stiff for sportier driving dynamics The electric power steering and MacPherson strut front suspension are designed to deliver taut tight handling characteristics that better connect the driver with the road and provide outstanding overall stability Anti lock brakes StabiliTrak electronic stability control and Hill Start Assist are standard
42. will not be tucked under the backing plate B as shown e The electrical connectors C on the back of the airbag module will be color coded and match the connector color on the vehicle side These connectors are keyed for each vehicle application and should not show any signs of being re machined or tampered with e Examine the module for tool marks visible on the fasteners and or grinder marks visible on the air bag backing plate A counterfeit air bag may have numerous holes D drilled cut into it which allows the counterfeit air bag to be installed into a wider range of vehicles Shorting bars on a genuine GM airbag module Missing Shorting Bars The airbag modules also should be equipped with shorting bars incor porated in the electrical connectors Grounding terminals or shorting bars on the inflator wire connectors which prevent the air bag from deploying when disconnected from the vehicle system that are missing is a sign of a counterfeit airbag The shorting bars appear as a gold plated U shaped piece of metal For additional information about inspecting for counterfeit airbag modules including specific details for identified GM vehicles refer to service bulletin 12 09 41 001A If your customers would like more information about this counterfeit air bag modules issue refer them to wWW Safercar gov Thanks to Rick Balabon Wide Range Air Fuel Sensors Since wideband oxygen O2 sensors
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