New J-45080 32MB Card for Tech 2
Contents
1. Vehicle Data Recorder VDR file to Review of VDR Opera t n a text file The text file can then be imported into a spreadsheet soft _ The VDR is a convenient aid in diagnos Ware program This permits creat ing intermittent operating conditions It ing custom graphs to perform a has the same snapshot recording capabili detailed analysis of the snapshot ties as your Tech 2 Before installing the VDR into a cus tomers vehicle you need to download instructions from your Techline terminal which has been programmed with the CD ROM you get with the VDR Because there s only one button to press its easy for a customer to trig ger a snapshot when the event occurs The Data Recorder will hold four snapshot events and will over write the first one If the customer attempts a fifth recording When the customer brings the Data Recorder back with stored snapshots simply hook the Recorder to your Techline terminal again Data can be displayed and played exactly as it would be on your Tech 2 snapshot playback software This allows you to learn more about the conditions surrounding the complaint You can read more about how to use the Service Engineering Tool in the helo section of the VDR softwere To access this information go to the Helo option on the main tool bar Select Menus Select Snapshot Menu Select Save Snapshot Select Save Snapshot Dialog to see the information Installing the Update Follow the2. 2000 Chevrolet and GMC WT5500 Series Medium Duty Tilt Cab M odels 01 08 58 001 Windnoise Around B Pillar Add Sealer 1999 2001 Chevrolet Corvette Hardtop 01 08 61 001 Clunk Noise From Front of Vehicle Replace Left Front Axle Mount Bracket Add Reinforcements to Frame and Bracket 1999 Chevrolet and GMC K1500 Series Pickup M odels Silverado and Sierra 7 01 08 63 001 replaces bulletin 52 15 01 Hood Hinge Rattle Install Spring Washer 1995 2001 Chevrolet and GM C S T Pickup and Utility Models 1996 2001 Oldsmobile Bravada 01 08 64 004 High Rear Door Swing Effort Replace Check Link 1997 2001 Chevrolet Malibu 1997 1999 Oldsmobile Cutlass 01 08 64 015A replaces bulletin 00 08 64 015 Power Sliding Side Door Edge Guard Comes Loose Install New Edge Guard 1997 2000 Chevrolet Venture Oldsmobile Silhouette Pontiac M ontana 1997 1999 Pontiac Trans Sport Return to page 1 March 2007 This review of service bulletins released through mid M arch lists the bulletin num ber superseded bulletin number if applica ble subject and models GENERAL INFORMATION 99 00 89 015A replaces bulletin 99 00 89 015 Light Tactical Support Vehicle LTSV Formerly known as the Commercial Utility Cargo Vehicle CUCV Il and III Service 1999 2002 Chevrolet K Series Models with Military Upfit 01 00 89 005 J anuary 2001 Bulletin Summary 2001 and Prior Passenger Cars and Trucks 01 00 90 001A replace
3. Align Propeller Shaft 1999 2001 Chevrolet Tracker 01 04 18 001 replaces bulletin 36 74 05A Driveline Noise Normal While Operating in Four Wheel Drive 1988 2001 Chevrolet and GMC K and T Models 01 04 19 001 Special Service Policy for S T Utility Front Axle Service 2002 Chevrolet and GMC S T Utility Models Trailblazer Envoy and 2002 Oldsmobile Bravada 01 04 20 002 Exchange Program for 2001 Model Year Transfer Case Rear Differential 2001 Aztek with 3 4L Engine VIN E RPO LA1 and Versatrak All Wheel Drive System 01 04 21 003A replaces bulletin 99 04 21 003 Front Wheel Slipping with Vehicle in Four Wheel Drive Replace Transfer Case Clutch Plates and Front Drive Axle Lubricant 1999 2001 Chevrolet and GMC K and T Models Silverado Sierra Blazer Envoy J immy with NV236 246 Transfer Case RPO NP8 BRAKES 01 05 23 001 Brake Align System for Brake Rotor Lateral Runout Correction 2001 and Prior Passenger Cars ENGINE PROPULSION SYSTEM 00 06 01 015B Engine Oil Level Indicator and Tube Change 2000 01 Chevrolet and GMC C K Pickup Models Silverado Sierra 2001 Chevrolet and GMC C K Utility Models with 4 8L 5 3L or 6 0L V8 Engine VINs V T U RPOs LR4 LM7 LQ4 01 06 01 003 Exchange Program for Early 2002 Model Year 4 2L Engine 2002 Chevrolet Trailblazer GMC Envoy Oldsmobile Bravada with 4 2L Engine VIN S RPO LL8 01 06 01 005 Cold Engine Tick Noise Replace Pistons
4. may have brought in a copy of a game or other entertainment Such files often pass from machine to machine and it s impossible to determine at which point the file got corrupted What are some current typical viruses At any given time there may be 50 000 or more viruses in circulation so your chances of coming into contact with one are much greater than you may think New viruses crop up at the rate of 10 12 per day here are some recent ones and a description of what they do Kriz 4050 Self replicat ing virus that tries to format your hard drive on Christmas every year W32 Naked M M also known as Naked Wife E mails itself to everyone in your address book tries to delete all system files in the Windows folder VBS SST M M also known as AnnaKoumikova E mails itself to everyone in your address book may also delete various files What are some good practices that minimize virus infections First every computer in your dealer Ship should have an anti virus program installed And the program should be run at regular intervals Second never open an e mail attach ment without first scanning it with your anti virus software Third never allow a disc from outside be read into one of your computers with out first scanning it with your anti virus software Anti Virus Software The installation and use of anti virus software is your dealership s responsibility There are numerou
5. they become available Mark Stesney Evap Code PO442 Caused by Fuel Sender Seal 2000 2001 Chevrolet Cavalier Pontiac Grand Am and Sunfire and Oldsmobile Alero On some of these vehicles the cus tomer will experi ence an illumi nated SES lamp Diagnosis will reveal a stored P0442 Evap code The cause may be the seal between the fuel tank and the fuel gauge sender If the Seal is deformed and squeezed out it can create a small air leak causing the vehicle s self diagnostic to set the code Replacing the seal should correct the condition The seal has been manufac tured in two configurations called the H cross section and the K cross section The H Seal was originally used in pro duction and the K seal is the replace ment The part number for the K Seal Is 22626099 The illus tration shows the old seal with an H cross section and the new replacement seal with a K cross section Follow the procedure in SI 2000 when replacing the seal Thanks to Darryl Butler Return to page 1 2000 2001 Cadillac DeVille Seville and Eldorado and Oldsmobile Aurora equipped with 4T80 E RPO MH1 A number of garage shift concems emerged for the 4T80 E transmission in the 2000 and 2001 model years The purpose of this article is to provide a Summary of these concerns and clarify which model years are affected by which conditions Do this first Verify complaint Note the state
6. 0 plus shipping What about additional memory cards Replacement cards for additional units can be ordered through Kent M oore 1 800 GMTOOLS The Tech 2 requires a 32MB card called a linear flash card The low priced 32MB cards available on intemet sites are called strata flash cards and they will not work in the Tech 2 Which software should be loaded on the new 32MB card The 32MB card will come with start up software only It should be placed in Slot 1 closest to the screen where the 1OMB card is presently located The 10MB card should be moved to Slot 2 It can be utilized for other applications that are 10MB or less or older versions of software for instance Saab or Isuzu With the new card installed follow the normal update procedure using TIS 2000 Preliminary software required to rec ognize the 32MB card has already been broadcast to GM ACCESS dealers on February 24 and 25 Blockpoint version 01 1 Users of stand alone PCs running TIS 2000 will have two ways to update use CD version 01 1 to be shipped the first week of Apni or go to website http service gm com and select Incremental Update for Standalone Installation How can I access either the 32MB card and the 10MB card The Tech 2 will read whichever card is selected At the Tech 2 logo screen press the SHIFT key Use the left and right arrow keys to select Slot 1 or Slot 2 We ll bring you news of additional features as
7. 2000 01 Buick Century Chevrolet Lumina Malibu Pontiac Grand Prix with 3 1L Engine VIN J RPO LG8 01 06 01 006 Diagnosing Engine Oil Leak into Spark Plug Wells 1999 2000 Chevrolet Tracker with 2 0L Engine VIN C RPO L34 01 06 01 007 Engine Coolant Consumption or Coolant Leak Inspect for M aterial Degradation Replace Intake Manifolds Various 1995 1998 Car 8 Models with 3 8L V6 Engine VIN K RPO L36 01 06 01 008 Engine Oil Pan Leak Seal with RTV Sealant Various 1995 2001 Car Models with 3 8L V6 Engine VINs K 1 RPOs L36 L67 and Stamped Steel Oil Pan 01 06 04 001 Poor Engine Performance and or Transmission Shift Quality Reflash Engine Calibration 1999 2000 Chevrolet and GMC B C and F Medium Duty Models with Caterpillar 3126 Engine VIN C RPO LG5 and Allison Transmission Model AT545 01 06 04 003 MIL Light On DTC P0141 Set Replace Oxygen Sensor HO2S 2 1996 Buick Skylark Chevrolet Cavalier Oldsmobile Achieva Pontiac Grand Am and Sunfire with 2 4L Engine VIN T RPO LD9 01 06 04 006 Lean Hesitation Sag or Stumble on Light M oderate Acceleration Reprogram PCM 1999 Chevrolet and GMC C K Pickup M odels Silverado Sierra with 4 8L 5 3L or 6 0L V8 Engine VINs V T U RPOs LR4 LM7 LQ4 01 06 04 007 MIL Indicator Illuminated DTC Code P0442 Stored Replace Fuel Sender to Tank O Ring 2000 01 Chevrolet Cavalier Oldsmobile Alero Pontiac Grand Am and Sunfir
8. 5 0 day 295 in the year 2000 should be replaced If the lower control valve body is removed from the transmission a new manual shift shaft retainer part ID 915 in the service manual must be installed during assembly Do this sixth Skip this step if vehicle is a 2000 model or if condition is not delayed engagement into reverse Check Accumulator Housing 2001 Vehicles ONLY The customer may comment on a delayed engagement into reverse at any time The condition is not temperature dependent The cause is a reverse accu ae o Bad chamfer on left good chamfer on right mulator seal number 947 that is cut If the reverse accumulator bore chamfer is cut too deep the piston seal can travel onto the chamfer area rolling the seal and cutting it This is generally found in vehicles built in August and September 2000 Replace the entire accumulator housing number 944 Be aware that there is asmall chance that you may receive an accumulator housing from SPO with the chamfer cut too deep There is also the possibility that if you replace the accumulator hous ing for some other reason you may introduce the subject condition into the vehicle Thanks to Chris Anderson Return to page 1 How Do Your Brake J obs Measure Up Bulletin 01 05 23 001 released February 2001 establishes a new tighter lateral runout specification of 0 050 mm 0 002 in or less for new or refinished brake rotors The prev
9. B card is reaching its limits and it s time to expand again Why is a larger memory card needed The memory card contains diagnostic and reprogramming applications and Space for vehicle calibrations As the functions of the Tech 2 expand more Space is needed for new diagnostic applications For convenience coverage of the 1991 to 2002 vehicles is being retained and capacity is being added to accommodate upcoming model years For one example calibration files are continued on page 2 oon oi oo New J 45080 32MB Card for Tech2 How to Find a Vehicle s RPO Code 1 Evap Code P0442 Caused by Fuel Sender Seal Garage Shift Concern Summary 0005 How Do Your Brake obs Measure Up 4 2001 Vehicle Data Recorder Software Update Door Trim Pad Damage 0 0 ee Intermittent Communication Conditions NIGUS PROLCGUOMG ge eee aes eaten eee eee en BUlletinSet menue O E ES TE cM Service Operations GM TechLink is a monthly magazine for all GM retail technicians and service consultants providing timely information to help increase knowl edge about GM products and improve the performance of the service department This magazine is a companion to the GM Edge publication Publisher amp Editor Mark Stesney GM Service Operations lt Mark Stesney GM com Technical Editor J im Horner lt im Horner SandyCorp com 1 248 816 3641 Production Manager Ma
10. e 01 06 04 008 Inaccurate or Erratic Fuel Gauge Reading Install New Fuel Tank Sender Sensor 2000 01 Chevrolet Cavalier Malibu Oldsmobile Alero Pontiac Grand Am Sunfire Toyota Cavalier 01 06 04 009 Service Engine Soon SES Light On with DTC 0226 Set Replace Fuel Pressure Regulator Limiter 1998 2001 Chevrolet and GMC F Model T Series Medium Duty Tilt Cab Models 2000 2001 Chevrolet and GMC WT5500 Series Medium Duty Tilt Cab Models with 7 8L Diesel Engine VIN 3 RPO LG4 TRANSMISSION TRANSAXLE 01 07 30 002 Malfunction Indicator Lamp MIL On Transmission Stuck in Third Gear Instrument Cluster Inoperative Replace Ignition Switch 1999 2000 Cadillac Escalade 1997 2001 Chevrolet and GMC C K and S T 1997 2001 Oldsmobile Bravada with 4L60 E Automatic Transmission RPO M30 01 07 30 003 1995 2000 Summary of 3T40 Transaxle Technical Information as of 11 01 00 1995 2000 Chevrolet Cavalier and Pontiac Sunfire with 3T40 Automatic Transmission RPO M D9 continued on page 7 Return to page 1
11. ed third screw must be removed from the bottom side of the door pull to release the bezel Thanks to Gary McAdam Intermittent aus Communication Conditions When diagnosing intermittent com munication problems on 2000 and 2001 S T pickup and sport utility vehicles fol low service information diagnostic pro cedures and specifically check G110 at the radiator core support before replac ing the EBCM DTC codes U1031 U1041 C0243 through C0248 C0253 C0255 C0268 and C0286 have often been traced to a loose ground at the radiator core support Thanks to Dan Oden Return to page 1 Virus Protection A dealership s in house computer net work had become infected with a virus They cleaned the server but did not clean all of the Techline clients An infected client reinfected the server which passed the virus on to all the other clients Before they got the situation under control and all the computers cleaned down time was just over three weeks This resulted in a lot of lost business as vehicles had to be taken to another dealership for programming Could something like that happen in your dealer Ship Can you take precau tions against it Here s the latest information What kinds of communication links connect to your dealership s computers GM ACCESS is a private Intranet infrastructure that allows two way communica tion between your dealership lt and various locations within
12. in field date of March 17 Do this fourth Spacer Plate Gasket 2000 and 2001 Vehicles The customer may experience a harsh garage shift from park to reverse first thing in the morning or first shift of the day This may be more prevalent in cooler weather The condition will not repeat itself throughout the day but may return the following day If the customer concern does not exactly match the above description this step will not help and should be skipped If the customer concem exactly matches the above description a revised Revised spacer plate gasket with white stripe upper valve body spacer plate gasket has been developed to correct this condition The part is currently available through Technical Assistance until inventory is available at SPO A white colored stripe running the length of the gasket can identify this new gasket Do this fifth Check Electrical Components All 2000 and 2001 Model Years After correcting any DTC and the problem persists examine the transmis M anual Shift Shaft Retainer no 915 sion electrical components Inspect the wire harness assembly for being pinched nicked or cut Inspect the input Speed sensor bolt torque 11 13 Nm or 8 9 5 Ib ft and check the wire for possi bly being pinched Inspect the pressure control solenoid and the transmission fluid pressure switch assembly for prop er connection and function Pressure control solenoids built before J ulian date 29
13. instructions on the CD ROM in order to install the release 4 0 software The software will automatically overwrite the previous release 3 0 software When the installation is complete you will see the Vehicle Data Recorder icon on the desktop that indicates it is release 4 0 when It Is high lighted During the transition from release 3 0 to release 4 0 itis recommended to utilize Vehicle Data Recorder Software release 3 0 to play back snapshots captured with release 3 0 This will insure accurate playback and display of the data Questions or concerns about the Vehicle Data Recorder or the 2007 Software Update should be directed to Kent Moore Tools at 1 800 345 2233 thanks to Dave Holand Features of the Software Update The 2007 Vehicle Data Recorder Powertrain Software Update now includes transmission sys tem support along with Door Trim Pad Damage On 2000 2001 Chevrolet Monte Carlo models the door trim pad may be damaged by attempting to remove the power window switch bezel by prying between the door trim panel and the bezel The bezel does not snap into place and cannot be removed without removing the door trim panel from the door The power window switch plate with integral door pull handle bezel is retained by three fasteners Once the door trim is removed two screws locat ed on the metal mounting plate can be removed to separate the two halves of the pull handle bezel An easily over looked recess
14. ious Spec was 0 080 mm 0 003 in The fact that a runout specifi cation exists suggests that you must make a measurement to find out if the rotor you re dealing with meets the specification And if it doesn t you ll need to do something to correct it It may Surprise you that in most cases excessive lateral runout is not that difficult to correct But first why is lateral runout SO important Consequences of Excessive Lateral Runout Let s begin with a definition of lateral runout It s a measure ment of the wobble or waviness of the rotor face measured with a dial indicator placed at right angles with the rotor face During braking wear typically occurs on both the pad and the rotor But if the rotor has exces Sive lateral runout LRO additional wear also occurs on the high spot of the rotor during non braking situations When the vehicle is being driven the high spot of the rotor rubs the brake pad once per revolution In time this wears down the high spot causing a thin spot on the rotor rotor thickness variation Wear occurs to a rotor with excess LRO when the brakes are not applied and the pulsation is evident when the brakes are applied Pulsation is the result of brake rotor thickness variation causing the brake Caliper piston to move in and out of the brake caliper housing The hydraulic pumping pulsing effect is transmitted through the brake system and may be felt in the brake pedal or t
15. mia oia aia nia sia Monia olja eia aijn aija April 2001 Volume 3 No 4 How to Find a Vehicle s RPO Codes When you re looking at a vehi cle s Service Parts ID label you ll find a code list of all the Regular Production Options RPO installed on that vehicle If you need a clue in interpret ing the RPO codes help is as close as SI 2000 Here s how On the Basic Version Open SI 2000 Click on Service M anual Build the vehicle Click on Service M anual Type RPO in the keyword box and click on Search Click on RPO Code List On the Enhanced Version Open SI 2000 Build the vehicle Click on Service M anual Type RPO in the keyword box and click on Search Click on RPO Code List This brings up a table providing a description of all the RPOs avail able on the vehicle Thanks to M ark Stesney PRSY cht TECH 2 ME MEMORY CARD ee AE Pighin Aerm omi ETELE THA Lime norig faia Typspms Tap AO py Bn etl New J 45080 32MB Card for Tech2 When the Tech 2 was introduced in 1996 it was equipped with a 10MB megabyte card which had 10 times the capacity of the original Tech 1 s mass storage cartridge The 10M B card was installed in Slot 1 closest to the screen with Slot 2 reserved for future use Vehicle on board computer capabili ties multiply with each new model year and the Tech 2 has had to keep pace Now the capacity of the 10M
16. ng brass cone steel cone and a three inch diameter steel ring The three inch diameter steel ring is placed between the blocker ring teeth and the synchronizer hub Because the inserts and springs are to be discarded the steel ring is used as a Spacer Failure to i Steel ring new viruses your anti virus software must be penodically updated This can be done automatically At the intervals you select with the update tool provided in the software your computer will check the software manufacturer s data base for the latest version this update will be installed automatically on your computer GM considers every 10 days as a reason able update rate Who is responsible for providing virus protection It is the responsibility of the dealer Ship to install anti virus software on all PCs and to educate employees on the negative impact of a virus attack If GM is required to assist in eradicating a virus the dealership will be billed accordingly Some Important Websites Anti virus Software www computerassociates com www mcafee com www symantec com Thanks to Mike Waszczenko and Steven Sturza install the steel ring in the correct location will cause a constant mesh of the blocker ring to the sleeve The brass inner cone may not fit into the drive sprocket on some 1999 Trackers Some early built 1999 Trackers may have the 1998 design drive sprocket For this condition order drive sprocket p n 91175753 GM Technical As
17. on on this new service practice IMPORTANT Never attempt to stack two or more correction plates together on one hub And never attempt to reuse a previously installed correction plate Torque Sockets A perfect job of final measurement is undone if an impact wrench is used when remounting the wheel without the appropriate torque limiting socket Uneven torque results in warping of the rotor inducing excess lat eral runout Use the appropriate J 39544 Torque Socket or equivalent with your impact wrench For additional details on brake rotor service guidelines refer to GM Bulletin number 00 05 22 002 Thanks to Russ Dobson Return to page 1 engine system support for 7995 5 to 2001 model year General Motors Enhanced OBD 2 vehicles Note Coverage for the Duramax LB 6 6 diesel and Allison M74 1000 transmission are scheduled for a future 2001 Vehicle Data Recorder Engine and Transmission Software Update r elease 4 J release he Catera Geo and In January your dealership received updat Tracker are not covered at this ed software for your J 42598 Vehicle Data ime Recorder his is a reminder to install the soft An additional new feature of ware in your fechline terminal right away If this software update is a feature you havent already done so It will expand called the Service Engineering the usefulness of your VDR to record trans Tool or SET This tool converts a mission data as well as engine system data
18. points to consider and the options as technology presents itself today Bench Lathe Maintenance Precision machining depends on precision equip ment With today s tighter specifications bench lathe performance must be checked regularly Check adapters for nicks and burrs which may affect the machining process Also measure the runout of the bench lathe arbor to be Sure it is machining accurately Indexing The Rotor Moving the brake rotor on the hub one lug at a time will often reduce LRO to within specifications Parts Replacement Determine what s at fault Measure the rotor on the lathe before mounting it on the vehicle Measure runout of the hub Replace parts if necessary On Car Lathe On car lathe technology compensates for vari ables in hub to rotor mounting and will automatically give you a quality job within LRO specifica tions Cleaning is still important regardless of the machining process The Pro Cut PFM 900 has automatic compensation for set up and has set the standard for the industry It is precise it is easy to operate and it is a great time saver for captured rotor situ ations Correction Plates If your shop doesn t have an on car brake lathe there is a new tech nology for correcting brake rotor lateral runout called Brake Align Measure runout and install a specially selected tapered correction plate between the rotor and the hub Bulletin 01 05 23 001 provides complete informati
19. ransmitted through the vehicle structure chassis system components or steering column Preventing Pulsation It s certainly important to fix the cause of a pulsation complaint but it s even more important to take steps to prevent it from occuring again in the future This is where the new LRO spec ification comes into play Any time a rotor is serviced you Should measure LRO after the repair It s that simple Mount the rotor to the hub with lug nuts and washers torqued to Specification and measure the runout Eliminating runout prevents pulsation With the tighter specification in mind M easuring lateral runout today s hubless rotor design demands careful attention to the hub to rotor inter face Cleaning machining and proper lug nut torque are important elements to consider Carefully examine the hub to rotor interface every time this area is serviced So how does your brake service measure up Are there dial indicators located at the brake lathe Does your toolbox include a dial indicator A quality flex arm dial indicator with vise grip attachment is a MUST for every techni cian Using a dial indicator to inspect for lateral runout after the repair is now a critical step in the prevention of brake pulsation Dealing with Excessive LRO What can you do if a rotor is found to have excessive lateral runout Its diffi cult to cover all situations within every service department but here are some
20. rie Meredith Desktop Publishing Greg Szpaichler MediaW urks lt pake mediawurks com FAX number 1 248 649 5465 Write to gt lt TechLink PO Box 500 Troy MI 48007 0500 GM TechLink on the Web http service gm com General Motors service tips are intended for use by professional tech nicians not a do it yourselfer They are written to inform those techni cians of conditions that may occur on some vehicles or to provide informa tion that could assist in the proper Service of a vehicle Properly trained technicians have the equipment tools Safety instructions and know how to do a job properly and safely If a con dition is described do not assume that the bulletin applies to your vehi cle or that your vehicle will have that condition See a General Motors deal er servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information Inclusion in this publication is not nec essarily an endorsement of the indi vidual or the company Copyright 2001 General Motors Corporation All rights reserved continued from page 7 continually growing in size and will soon be 1MB When will the larger memory card be available Beginning in April 2001 all new Tech 2 orders will be shipped with the new 32MB card installed Also in April 2001 each dealer will receive one 32MB card J 45080 to meet essential tool requirements The price is 415 8
21. rom outside This is the virus infection Once inside it attacks causing a wide range of effects from discomfort to ill ness or even in severe cases to death Computer viruses are so named because they behave much like the bio logical kind They infect your program by GM ACCESS Hut Pt Cion PC Chant PC Cini Typical Dealership Intranet entering from the outside and once inside viruses may cause simple mis chief may interrupt your operating pro grams may destroy data or cause other disruptions And frequently the virus is designed to self destruct so it leaves no trace of itself behind Once a virus attack has occurred it may take weeks or months to correct the Situation resulting in customer dissatis faction lost productivity and negative financial impact Each Techline client must be cleaned or preferably reformat ted The clients can t log into the server until all computers are cleaned as they risk reinfection After the clients are cleaned the server must be cleaned W here do viruses come from Most viruses are carried into your computer attached to e mail messages downloaded from the internet or on infected discs brought in from the out Side This means that an e mail from a cus tomer or from a supplier could be infect ed without the sender even knowing about it By the time the virus is discov ered it s already been passed on Or one of your fellow employees
22. s 01 00 90 001 Recommended Rear Axle Lubricant 2000 2001 Rear Wheel Drive Passenger Cars Light Duty Trucks and Four Wheel Drive Vehicles HVAC 01 01 38 002 HVAC Pollen Air Filter 2000 2001 Chevrolet Tracker 4 Door Models Only 01 01 38 003 Poor Heat Distribution in Driver s Area of Vehicle Install New Heat Diverter Ducts 1996 2001 Chevrolet and GMC M L Van Models Built Before Breakpoints 01 01 38 004 Heater Outlet Hose Contacts or Rubs Generator Reroute and Tie Strap Hose Replace Hose if Necessary 1999 2000 Chevrolet and GMC C6 7 H Series Conventional Medium Duty Models with Gasoline Engine VINs B D RPOS L21 LP4 SUSPENSION 01 03 09 001 Metallic Ringing Rattle Noise From Rear of Vehicle Install New Shock Absorber 2001 Pontiac Aztek without RPO G67 Automatic Level Control Built Prior to Breakpoint 01 03 10 001 Proper Location of Wheel Lock Wrench During Pre Delivery Inspection 2001 Chevrolet Camaro and Pontiac Firebird DRIVELINE AXLE 99 04 21 005A replaces bulletin 99 04 21 005 Transfer Case Shudder Flush and Replace Transfer Case Fluid 1999 2001 Chevrolet and GMC L Van 1999 2001 Oldsmobile Bravada with NV136 Transfer Case RPO NP4 01 04 17 001 Launch Shudder on Acceleration Install New One Piece Propeller Shaft 1999 2001 Chevrolet and GMC K2500 3500 Extended and Crew Cab Long Box Pickup Models with Automatic Transmission 01 04 17 002 Driveline Vibration Inspect and
23. s anti virus soft ware programs available in the market place GM has tested all of the major ones and recommends two that have few if any incompatibilities with the Techline terminal These are McAfee Viruscan 5 x or later and Norton Antivirus 2000 or later GM Dealer Word contains direct links to both of these software sources This pro vides you with a convenient way to con tact their websites You can research their offerings and can place an order on line Although software can be purchased and downloaded from McAfee and Symantec it is not a recommended Return to page 1 method of obtaining software When software is purchased in a retail store it comes on a CD ROM which can t be infected by a virus Suitable anti virus software can be purchased for 30 40 at such retail out lets as Best Buy Circuit City CompUSA Fry s Electronics M edia Play Micro Center Office Depot Office Max Software City Staples WalMart and oth ers Once you have installed the anti virus software you re not finished Because hackers are constantly coming up with TAC Tracker High Transfer Case Shift Effort Bulletin 00 04 21 002 pertains to 1999 2000 Tracker 4WD While performing the repair procedures outlined in the bulletin some technicians may have concerns of the correct location of the three inch diameter steel ring which is included in part num ber 91176201 Parts included in p n 91176201 are the blocker ri
24. sistance Steering Column Doesn t Lock in Park On some 2001 full size light duty Chevrolet and GMC trucks the steering column doesn t lock and some models in stock have ears on the ignition switch while others don t The column lock feature has been deleted on the models MODELS listed below with automatic transmissions and the new ignition switch will not have the ears Models with manual transmis sion will continue to use the steering column lock and these ignition switches will have the ears Do not attempt to replace the non column locking switch with a locking switch or vice versa 2001 Chevrolet Silverado C1 C2 C3 2001 Chevrolet Silverado K1 K2 K3 2001 GMC Sierra C1 C2 C3 2001 GMC Sierra K1 K2 K3 GM Technial Assistance continued from page 8 01 07 30 004 1995 2000 Summary of 4T40 45 E Transaxle Technical Information 1995 2000 Chevrolet Cavalier Pontiac Sunfire 1997 2000 Chevrolet Malibu 1999 Oldsmobile Cutlass 1999 2000 Pontiac Grand Am Oldsmobile Alero with 4T40 45 E Automatic Transmission RPO MN4 MN5 BODY AND ACCESSORIES 01 08 42 001 replaces bulletin 63 82 06A Exterior Lamp Condensation and Replacement Guidelines 1993 2001 Passenger Cars 1993 2002 Light and Medium Duty Trucks 01 08 48 001 Windshield Reveal Molding Squeak Add Anti Squeak Tape 1999 2001 Chevrolet Camaro Pontiac Firebird with T Tops 01 08 49 001 Speedometer Control Unit Configuration Replacement
25. the GM Corporation Communication takes place over the PUL SAT satellite system Your dealership is equipped with a GM ACCESS server to handle communication with the satellite GM ACCESS provides a limited num ber of direct links to approved websites from www gmaccess com These include the anti virus software providers dis cussed later in this article Because GM ACCESS is totally within the control of GM it is constantly moni tored against any virus infections Viruses are unlikely to originate from GM due to the various safeguards built into the cor porate infrastructure In addition your dealership may have a connection to the totally public internet through an independent ISP intemet ser vice provider This is how e mail mes Sages can travel to and from your dealer ship The public internet connection rep resents the weak link in your dealership s communication system because it can not be monitored by GM as GM ACCESS is monitored E mail originating from GM won t be infected but it s possible for infected e mail to pass through GM ACCESS for instance from one dealer to another An infected e mail from the originating sender can travel within the GM ACCESS infrastructure And finally within your dealership there may be a network of comput ers communicating with each other and the GM ACCESS server What Is a virus In the medical world a virus is a tiny microorganism that invades your body f
26. where the vehicle was onginally delivered It affects how the vehicle was factory calibrated 2000 Califomia and Massachusetts Only and 2001 All states Vehicles built for California and Massachusetts in 2000 and all vehicles in 2001 are calibrated for ultra low emis sions Engine speed at start up is approximately 1200 rpm for 30 to 40 seconds A harsher garage shift will occur in these vehicles than at a normal idle No repair for harsh garage shift Should be attempted on these vehicles unless the concem is exhibited after the engine attains a normal idle Do this second Address DTCs All 2000 and 2001 Model Years A large number of Diagnostic Trouble Codes DTCs may cause the Powertrain Control Module PCM to command high line pressure resulting in possible harsh garage shifts Look at Since Cleared and This Ignition diagnostic screens Before any transmission repair is attempted perform a system review You must cor rect any engine DTC that is set don t just clear it Once all engine DTCs are corrected you can perform transmission diagnosis Be sure to follow DTC diag nostic procedures as shown in the ser vice manual If a DTC is not set record a Snapshot of the harsh shift for additional technical assistance Do this third Skip This Step if Vehicle is not a 2001 Aurora Re flash PROM 2001 Aurora Only A service calibration is under devel opment to address this concer with an expected
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