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Service Information of the Future is Here Now

1. Add the number 2000 to the end of any name and you ve got a high tech futuristic Sounding product But now that the year 2000 is actual ly upon us what does that number really mean service Information 2000 will be released to GM dealerships across the country later this year And in this case 2000 does stand for high tech While Service Information 2000 is sent to dealerships on five CD ROMs that same service informa tion can be found on the World Wide Web Service Information on the The only thing constant is change That can be applied to just about any thing in life But we at Tech Link are back and looking torward to bring ing you more service information to help you do your job We have made a number of changes to your service magazine as well New features are being added and will appear in the coming months We ll give you the news about Techline and other service infor mation support systems in the dealership More of the latest service Web provides access to the same GM service infor mation you ve come to look for in the paper manuals and on CD Service Information 2000 information about current product issues will be coming trom the Technical Assistance Center We ll explain the way things work regard ing new components and systems in addition to a look back to some basic theories of opera tion You ll find a review of new service bulletins so that you can keep up on
2. Concerns SES Or Oil Level Lamp IIluminates Spark Knock Exhaust Popping Reprogram PCM 99 06 04 036 1998 Buick Century LeSabre Park Avenue Regal Skylark 1998 Chevrolet Camaro Lumina Malibu Monte Carlo Venture 1998 Oldsmobile Achieva Cutlass Eight Eight Intrigue Silhouette 1998 Pontiac Bonneville Firebird Grand Am Grand Prix Trans Sport 1998 Chevrolet And GMC C K Pickup G M L P S T Trucks 1998 Oldsmobile Bravada With 3 1L 346 3 6 4 3b 5 0L Or 5 7L Engine VINs M E K 1 W X M R RPOs L82 LA1 L36 L67 L35 LF6 L30 L31 On Board Diagnostic OBD System Improvements Reprogram PCM 99 06 04 037 1999 Chevrolet And GMC B7 Models With 7 4 L Engine VINs B D RPOs L21 LP4 1999 Chevrolet And GMC G2 3 Van Models With 6 5L Diesel Engine VIN F RPO L65 Reduced Engine Power DTC s P1125 P1275 P1276 P1280 P1281 P1285 And Or P1286 May Be Present Current Or In History
3. coded Use the navigation icons or click and drag on the arrow along the bottom of the graph to move through the para meters in the graph New TIS 2000 user guides will be shipped to dealerships shortly Consult the new guides for additional informa tion about the capabili ties of TIS 2000 Mark Spencer 3 Service Information Hits the Web As Service Information 2000 is released more and more dealerships also will have access to Service Information on the Web And It s just that service information on the World Wide Web The web site is currently in the pilot stage at a number of GM dealerships To search and use the service information deal erships need to have access to the Web through an Internet Service Provider ISP a modem connection or a dedicated line for an Internet connection and a Web browser Netscape 4 5 or Internet Explorer 4 0 or higher to view Web sites The service informa tion is the same as that found on Service Information 2000 CDs And the navigation through the information is nearly identical Yet there are a few enhance ments Since it is a Web site there is E mail com munication available to the Techline Customer Support Center TCSC whether It s for an answer to a question about navigation or to report an error in the ser vice information TCSC will acknowledge the E mail and provide a response 2000 What s News What s the big n
4. Chevrolet amp GMC K T 4 Wheel Drive Pickups And Utility Models 1999 2000 Chevrolet amp GMC L Van Models 1999 2000 Oldsmobile Bravada With Active Transfer Case RPOs NP4 NP8 Improved Automatic Transfer Case Fluid 99 04 21 006 BRAKES 1992 99 Chevrolet And GMC C K Cab Chassis Crew Cab And Pickup Models With Power Brakes RPO JB8 1992 99 Chevrolet And GMC C K Suburban Models With 8600 4 GVW RPO C6P 1996 2000 Chevrolet And GMC G Vans With Power Brakes RPO JD7 amp JB8 And GVW s Of 7 700 Up To 9 500 RPO s C3F C6P amp E23 Brake Lead Pull And Front Brake Wear Replace Front Brake Pads And Or Rear Brake Shoes Revised 99 05 24 001 99 05 24 001A 1999 Buick Century Regal 2000 Chevrolet Cavalier Impala Malibu Monte Carlo Venture 2000 Oldsmobile Silhouette 2000 Pontiac Sunfire Montana DBC 7 Diagnostic Assistance And Parts Return Program 99 05 25 003 ENGINE PROPULSION SYSTEM 1999 Chevrolet Venture 1999 Oldsmobile Silhouette 1999 Pontiac Montana With 3 4L Engine VIN E RPO LA1 Intermittent PCM Lockup When Performing On Vehicle PCM Reprogramming 99 06 04 028 1998 Chevrolet Malibu 1998 Oldsmobile Cutlass With 3 1L Engine VIN M RPO L82 Cold Engine Idle Surge Extended Crank Time Crank No Start Reprogram PCM 99 06 04 032 1999 Chevrolet And GMC C K Models Silverado And Sierra With 4 8L 5 3L Or 6 0L V8 Engine VINs V T U RPOs LR4 LM7 LO4 Various Driveability
5. Spencer SandyCorp com lice ene More information r SI 2000 main menu Jim Horner about system ei Jim Horner SandyCorp com al sections as in the paper manuals requirements and setup about 1 248 816 3641 Service Information 2000 will be sent The difference is the navigation FAX number through the information to dealerships shortly 1249 6495465 Future updates of service infor J a a Wale men eyes mation will be sent on one CD to Kenta tc make and model as well as many dealershi odically Dealershi ida int particular vehicle systems can be CES E ann Gen seced Merrie sccm ie will need to update PCs with the lat PO Box 500 HA S lean S N T est service information Troy MI 48007 0500 then the subsection of the manual The navigation of Service Desktop Publishing Previously looking up this informa Information 2000 is very user friend Greg Szpaichler MediaWurks com tion would require either one or two ly and the Help menu provides assis clicks of the mouse depending on tance in finding information User General Motors service tips are intend the information you wanted to guides will be included with the ed for use by professional technicians select Now It s all one g not a do it yourselfer They are written to inform those technicians of condi tions that may occur on some vehicles or to provide information that could assist in the proper service of a vehicle Properly trained technicians have the equipment tools sa
6. once per revolution a fourth order disturbance occurs four times per revo lution and so on Firing frequency describes the pulses cre ated as the engine fires each cylinder The order of the firing frequency is 1 2 the num ber of cylinders in the engine In resolving engine speed related vibra tions it s important to realize that certain dis turbances are inherent in the engine s design The key to resolving these vibrations is to properly isolate the vibration from the passenger compartment Some of the ways engineers deal with these is through engine mount design isolation of the exhaust sys tem and isolation of fuel coolant and AC SPX KENT MOORE lines that are attached to the engine Vehicle Speed Related Vibrations In the case of vehicle speed related vibra tions you need to input tire size information where the driving wheels are located the axle ratio and the vehicle speed at which the vibration is noticed The readout may indicate that the vibration is 1st 2nd or 3rd order of tire wheel rotation that it is 1st or 2nd order of propshaft rotation that it is an overlap of wheel and propshaft trequencies or that the Source IS unknown Wheel and tire disturbances are always related to vehicle speed not engine speed In general front wheel disturbances are felt mostly in the steering wheel and rear wheel disturbances are felt mostly in the seat or floor First order tire vibrations are generall
7. 15 Convertible Top Is Hard To Close Replace Headliner 99 08 67 005 2000 Chevrolet Impala Gap Between Center Of Rocker Molding And Retaining Clip Or Between Center Of Rocker Molding And Body Replace Center Retaining Clip 99 08 11 1 002 Bulletins august 1999 GENERAL INFORMATION All 2000 Passenger Cars And Trucks Except The Following Models Cadillac Catera Eldorado Chevrolet Camaro Lumina Pontiac Firebird Medium Duty Trucks New Key Code Information For 10 Cut Keys 99 00 89 011 1994 2000 Passenger Cars And Trucks August 1999 Labor Time Guide Updates 99 00 89 012 1999 2000 Chevrolet Venture 1999 2000 OldsmobileSilhouette 1999 2000 Pontiac Montana Diagnostic Information For No Start Or Start Stall Diagnostic Trouble Codes DTCs BO2955 B0687 B0689 Set 99 00 89 013 All 2000 Passenger Cars And Trucks Location Of Diagnosis In The Service Manuals 99 00 89 014 1999 2000 Chevrolet K Pickup amp Tahoe Utility With CUCV II Military Upfit Commercial Utility Cargo Vehicle I CUCV II Service 99 00 89 015 1994 2000 Passenger Cars And Trucks September 1999 Labor Time Guide Updates 99 00 89 016 HVAC 1996 99 Chevrolet And GMC M L Models With Rear A C System RPO C69 Insufficient A C Cooling Replace A C Compressor And Condenser Hose Assembly 99 01 38 002 STEERING 1990 2000 All Medium Duty commer ical Vehicles With Remote Reservoirs Revised Flushing Procedure For Contaminat
8. Instrumnet Panel Cluster Replace Fuel Level Sensor Reprogram EEPROM 99 06 03 007 1999 Chevrolet Camaro 1999 Pontiac Firebird Additional Procedures For Accelerator Pedal Controls R amp R 99 06 04 024 1997 98 Chevrolet And GMC Bi Fuel CNG C Models Squeak And Rattle Noise From Engine Compartment Or Cab Floor Reposition CNG Medium Pressure Fuel Line 99 06 04 026 1999 Chevrolet Corvette With 5 7L Engine VIN G RPO LS1 And 4L60 E Automatic Transmission RPO M30 Intermittent Accessory Drive Rumble Noise During Garage Shift And Or During Parking Lot Tyoe Maneuvers Reprogram PCM 99 06 04 029 1999 Chevrolet Corvette With 5 7L Engine VIN G RPO LS1 Hesitation Sag Stumble And Or Backfire On Acceleration Reprogram PCM 99 06 04 030 1998 Chevrolet Venture 1998 Oldsmobile Silhouette 1998 Pontiac Transport Montana With 3 4L Engine VIN E RPO LA1 Malfunction Indicator Lamp MIL Illuminates intermittently With No Driveability Concerns Reprogram PCM 99 06 04 031 TRANSMISSION TRANSAXLE 1997 99 Chevrolet And GMC T Series Medium Duty Models With Eaton Manual Transmission High Shift Effort Or Hard Shifting Install Revised Shift Cables And New Bias Spring 99 07 29 004 Bulletins September 1999 GENERAL INFORMATION 1996 And Prior Passenger Cars Light amp Medium Duty Trucks ACDelco Remanufactured Engines 99 00 01 001 DRIVELINE AXLE 1999 2000 Cadillac Escalade 1998 2000
9. Motors Corporation quickly keep up to date on new ser 2000 is high tech it s technology put ATE EE vice information without searching to use to make your job easier TIS 2000 Update The Techline Information System TIS 2000 application periodically receives updates through GM ACCESS broadcasts System to update the flash calibration Tiles that are stored ina vehicle s onboard con trol module Pass Thru allows you to connect the personal computer PC in the service bay to the vehicle using the _ ae EEE oO eE an that add to the capabili ty of the system The latest broadcast in October to the GM ACCESS file server in GM dealerships includ ed several enhance ments to the TIS 2000 application These enhancements are designed to make TIS 2000 more efficient and effective Many of these changes are transparent to the user and affect only the internal operation of the application howev er there are several changes that provide additional functionality to the TIS 2000 applica tion TIS 2000 is the group of several soft ware programs that perform Service Programming SPS Tech 1 and Tech 2 updating and Tech 1 and Tech 2 snapshot uploading and analysis With the latest GM ACCESS broadcast a Pass Ihru feature is now available with the Service Programming Tech 2 as a communi cations interface Previously it was necessary to separately connec
10. Parking Assist rear proximity warning system that detects items behind the car when in reverse and warns the driver and light emitting diode LED taillamps The DeVille is the first passenger car to offer LED taillamps which light in 0 1 millisec onds vs 200 milliseconds for an incandescent bulb At 60 mph that s approxi mately an additional 17 feet of warning for dri vers traveling behind the DeVille The DeVille also features an updated Stabilitrak system that uses automatic shock absorber damping adjust ments on each individual wheel The Seville also offers the optional Ultrasonic Rear Parking Assist and the updated Stabilitrak system And the front passenger seat in the Seville features a seat cushion sensor in order to determine whether or not to enable the front and side passenger air bags The seat sensor measures the weight as well as the posterior impression in the seat to distinguish a child from a lightweight adult An indi cator in the rear view mir ror tells the driver if the passenger air bags are turned on Chevrolet The all new Impala and Monte Carlo are based on the W body Both models offer the 3 4L V6 engine or the 3 8L V6 engine The 2 4L L4 engine has been dropped from the Malibu Malibu is now available only with the 3 1L V6 which also receives the same power enhancements found in the Buick Century The Cavalier offers a new Getrag 5 speed manual transmission I
11. ed Power Steering Reservoirs 99 02 32 006 SUSPENSION 1996 99 Chevrolet Cavalier 1997 99 Chevrolet Malibu 1997 99 Oldsmobile Cutlass 1999 Oldsmobile Alero 1996 99 Pontiac Sunfire 1999 Pontiac Grand Am Front And Or Rear Stabilizer Shaft Squawk Squeak Noise Replace Front And Or Rear Bushings 99 03 08 004 1999 Chevrolet And GMC C1500 Silverado And Sierra Regular And Extended Cab Models Built Prior To April 1 1999 Vibration And Lateral Shake On Smooth Road Surfaces Replace Leaf Spring Rear Eye Bushings And Rear Spring Shackles 99 03 09 002 DRIVELINE AXLE 1999 2000 Cadillac Escalade 1998 2000 Chevrolet And GMC K1 2 Pickup And Full Size Utility Models With NP246 Automatic Transfer Case RPO NP8 Bump Clunk Upon Acceleration Flush And Replace Transfer Case Fluid Revised 86 74 03 99 04 21 004 1999 Chevrolet And GMC L Van Models 1999 Chevrolet And GMC T Utility Models 1998 99 Oldsmobile Bravada With NV136 RPO NP4 And NV236 RPO NP8 Transfer Case Transfer Case Shudder Flush And Replace Transfer Case Fluid 99 04 21 005 BRAKES 1997 99 Chevrolet Malibu 1997 99 Oldsmobile Cutlass Front Brake Squeal Install New Brake Rotors Revised 99 05 23 001 99 05 23 001A ENGINE PROPULSION SYSTEM 1997 99 Buick Century Regal 1997 99 Chevrolet Lumina Monte Carlo 1998 99 Oldsmobile Intrigue 1997 99 Pontiac Grand Prix Fuel Gauge Inaccurate Fluctuates Premature Low Fuel Chime Exchange
12. ews for the 2000 model year From cars to trucks sedans to sport utilities plenty of new models and updates to current models are coming In the months ahead well take a closer look at many of the new features and systems available on the 2000 model year vehicles Here s a quick list of some of the changes being made to GM s lineup for 2000 Buick Introduced as an early 2000 model the LeSabre is an all new car based on the G body platform The new structure provides a solid foundation for an improved ride handling and steering New safety features include standard side air bags for the dri ver and front passenger Catcher s Mitt front seats that help protect occu pants in a low speed rear impact and the optional Stabilitrak integrated vehi cle stability control sys tem The Century s 3 1L V6 engine receives enhance ments that help the engine pump out 15 more horsepower now up to 175 hp and 10 more pound feet of torque now 195 ft lbs This additional power is due to the new combus tion chamber and intake manifold design The fuel system pressure also has been Increased 27 per cent for more reliable hot Starting Cadillac The DeVille is an all new model for 2000 Also based on the G body plat form the car has a num ber of high tech features These include the ther mal imaging Night Vision system for improved vision down the road while driving at night the Ultrasonic Rear
13. fety instructions and know how to do a job properly and Dette safely If a condition is described do not The mmr below reler othe ep mero dingo assume that the bulletin applies to your click So it s not necessary to double click to select one section and then sin gle click for another A Diagnostic System Check There are navigation Starting and Charging buttons at the top of the main menu for both ser x ofthe class 2 sprial data carput or dow is atte matiection iti and unit repair manual se di i ana da ae Tcl pee that condition See a General Motors nf ti ulet d ems EEE dealer servicing your brand of General INTOFMAtlon OUNEINS an aa dagars pred to oe Motors vehicle for information on eR bit eg ees ee Lee i 5 The presence of OTe which bagia wich U indioge acme oe DP A Cpg ries in ers al other medule ie nod commi in The pd ee en ee a a a ee eee ee Campaigns and the latest l whether your vehicle may benefit from i a i updated service informa EEEE EA the information tion OES a is SI 2000 service manual page Inclusion in this publication is not neces By clicking the latest sarily an endorsement of the individual information icon you can review the release of the application to dealer or the company service information that has been ships updated with a new CD release or satellite broadcast This allows you to Although service Information Copyright 1999 General
14. p tom refer to the appropriate subsection for diagnosis If the mirror on the driver s side does not operate cor rectly for example and there is a DIC but there is not a warning lamp or a message then refer to the Doors sub section Or if the rear win dow defogger does not oper ate correctly refer to the Stationary Windows subsec TION Some subsections begin ning with the 2000 model year service manuals Include the Diagnostic Starting Point The Diagnostic Starting Point identifies the correct proce dure in order to begin the diagnosis Another note about the new service information is that the name of the Brake Transmission Shift Interlock BTSI has changed The com ponent is now called the Auto Trans Shift Lock Control The wiring schematics and diag nosis are now in the Automatic Transmission sub section of the service manu al Mark Spencer Smart EVA Although the word smart doesn t appear on the tool or on the instruction manual you ll quickly realize that the new J 38792 A Electronic Vibration Analyzer 2 really has some smarts This recently revised tool is designed to help you locate the cause of unacceptable low frequency vibrations It consists of a hand held analyzer with power cord a vibra tion pick up sensor several sensor attachment devices an instruction manual and a storage case The EVA 2 is now an essential tool and is in all GM dealerships Vibration consist
15. ring harnesses contain traditional Dephi Packard style terminals at the ends that connect to components But where a harness plugs into another harness terminals of other manufac turers may be used This is where you may need the new UTA and Sumitomo terminals You may obtain detailed informa tion and packets of replacement ter minals from Kent Moore at 1 800 345 2233 Jim Horner Bulletins continued from page 8 Replace Accelerator Pedal Assembly 99 06 04 039 TRANSMISSION TRANSAXLE 1999 And Prior Passenger Cars And Light Duty Trucks With Automatic Transmission Automatic Transmission Service Procedure Changes Revised 36 71 06B 99 07 30 020 BODY AND ACCESSORIES 1998 Chevrolet Cavalier With Compressed Natural Gas CNG Fuel Option Trip Odometer Resets Install Diode 99 08 49 01 2 1995 2000 Chevrolet Cavalier 1995 2000 Pontiac Sunfire With Manual Mirrors Left Hand Manual Mirror Does Not Adjust When Adjustment Lever Is Moved Adjust Lever To Align With Lever Slide Revised 73 15 02 99 08 64 015 2000 And Prior Passenger Cars And Trucks Use Of silicone For Weatherstrip Maintenance 99 08 64 016 1997 99 Chevrolet Venture 1997 99 Oldsmobile Silhouette 1997 99 Pontiac Trans Sport Upper Roller Bracket Rattle Install Bumper 99 08 64 01 7 1999 Chevrolet Camaro Convertible 1999 Pontiac Firebird Built Before The Folllowing VIN Breakpoints Chevrolet X2127190 Pontaic XZ2226
16. s attached to the removed part These are available in your parts depart ment and also from the Dealer Although it s the responsibility B icinase Caner of the parts department to return the requested parts and it s the responsibility of the warranty clerk to be sure the paperwork is Jim Horner New Diagnostic Starting Point in Service Manuals Starting with the 2000 model year some of the infor mation in the service manuals will be organized in a new man ner The new structure will help you find the correct service information quickly This new diagnostic informa tion is available on the Service Information 2000 CDs and Service Information on the Web as well as the paper ser vice manuals The service information will be organized by the symptom that appears when there is a fault Priority will be given to the symptom types in the fol lowing order 1 Warning Lamp 2 Message Sompo Warning Lamp If a system s warning lamp is ON refer to the system s subsection for service informa tion For example if the ABS lamp is illuminated and there is a steering system DTC refer to the ABS subsection for diag nosis If a message appears on the Driver Information Center DIC refer to the subsection of the indicated system for ser vice information For example if the Low Coolant Level mes sage is displayed refer to the Engine Cooling subsection for diagnosis Symptom When there is only a sym
17. s of three ele ments the source which causes the vibration the transfer path which conducts the vibration throughout the vehicle and the responder where the vibration is felt Most vibration analysis is based on a customer concern You can determine if the vibration is related to engine rom or vehicle speed using the Slow Acceleration Neutral Coastdown and Downshift tests described in the service man ual Next determine where the vibration can be felt for instance the instrument panel the steering column or a seat runner This Is the best place to locate the EVA vibration pick up sensor Remember the source of the vibration may be a long way from where it is most strongly felt And it is not necessary to locate the sensor near the vibration source Be sure the sensor is locat ed with the word UP pointing upward Use any one of the various mounting attachments provided in the kit putty Velcro or mag net Engine Speed Related Vibrations In the case of engine speed related vibra tions you need to input the number of cylin ders and the engine rom at which the vibra tion is most noticed The readout may indi cate that the vibration is 1st 2nd 3rd or 4th order of engine speed that it is related to fir ing frequency or that the source is unknown When discussing vibration the term order refers to the number of times per rev olution a disturbance occurs A first order dis turbance occurs
18. st ten years you ve had a terminal repair kit in the form of essential tool J 38125 Revisions A and B were issued to keep the kit up to date Now it s time for a major redo The number of electrical termi nals necessary to repair a modern vehicle has expanded considerably in recent years As more circuits have been added there s been a need for more compact and lighter connec tors This has called for an increased variety of compact terminals as well In addition electrical wiring har nesses are now sourced globally which has added to the variety of terminals in use Your new J 38125 C terminal repair kit now consists of two stack able cabinets each with five draw ers Five of these drawers will hold the red terminal storage trays from your existing tackle box Two draw ers hold your assortment of removal picks installation crimpers torch and other tools Two drawers are for new trays containing assortments of terminals trom several newly added manufacturers UTA and Sumitomo Some of the compartments in these trays are intentionally left empty as is the tenth drawer to provide for future expansion The kit also includes a new loose leat Reference Guide which con tains information on identifying removing installing repairing and testing all of the terminals included in the kit When you examine the wiring harnesses of current production vehicles you ll notice that all wi
19. t features a 2 piece cast aluminum case and uses heavy duty dual cone syn chronizers for first and second gears along with a synchronizer for reverse It also has a cable operated shifter On the truck side the Chevrolet Tahoe and Suburban are all new and based on the GMT800 platform which is the foundation for the Silverado pickup As for the Silverado it now has a third door on the dri ver s side of extended cab models GMC The Yukon and Yukon XL extra length which replaces the GMC Suburban name full size sport utilities also are based on the GMT800 platform The Sierra pick up also has the third door on extended cab models Oldsmobile The Alero offers the new Getrag b speed manual transmission on models with the 2 4L L4 engine The Intrigue is now equipped only with the 3 5L V6 engine It also features the new Precision Control System which operates similarly to the Stabilitrak system A totally redesigned and smaller 2001 Aurora model is coming in the Spring with an available 3 5L V6 engine A 2000 model will not be pro duced Pontiac Based on the G body an all new Bonneville fea tures the 3 8L V6 engine and on SSE models the supercharged 3 8L V6 Stabilitrak also is available on the new Bonneville Grand Am models with the 2 4L L4 engine and Sunfire models also offer the new Getrag b speed manual transmis SION Mark Spencer Warranty Parts Return Ever
20. t the Tech 2 to the vehicle to obtain information from the control module and to the PC in order to download a new cali bration file Now to use the Pass Thru function select Pass Thru under Select Diagnostic Tool in the Service Programming System Enter the required vehi cle Information and then follow the screen instructions on the PC for connecting the Tech 2 to the vehicle and the PC Make sure that the Tech 2 is on the Tech 2 title screen The Tech 2 allows the vehicle con trol module to commu nicate with the PC and a new calibration Tile is downloaded straight to the control module in a few easy steps Keep in mind that the RS232 cable used with the Tech 2 may lose Its communication capacity once the dis tance between the vehicle and the PC approach approximately 50 feet or more Another new fea ture of TIS 2000 is its new graphing function under Snapshot display Up to six parameters from a snapshot can now be displayed In one graph on the PC Parameters are select ed in the same manner as In the previously available three graph display Simply click on the Display Graph icon then click the first graph icon at the top of the graph parame ters window and select a parameter from the list Click the other graph icons to select additional parameters When six parameters are selected click OK and they will all be dis played on a single graph with each para meter being color
21. the latest information And there will be plenty of details about new product so you ll know what s coming to your dealership and be able to better understand and explain those features to your customers Our focus is to pro 2000 model year service Information along with the newly redesigned 2001 Aurora in addition to bulletins and campaign information released since 1980 eo o and Service Sanyo Information on the AROS RP Teee Manga Thal tt Web include all eee E Grita Bieg Pou Cena Dega Comsat Chie TCC pargren Flange d J Copeman F Maru There Cpe Mare Gecord Goo mange Fan hee force The valve mlowa onthced third c iach Tle id to cater ihe third dikh circuit where the fwd applies the third chach FIGURE Overdrive Range Third Gear e Aprii panad If you re thinking Service Information 2000 simply replaces Electronic Service Information ESI with more CDs think again Service Information 2000 does replace the ESI CDs but does it all with only a vide those in the dealer ship service department service managers technicians and service consultants with timely information to help increase knowledge about GM products and improve the performance of the service depart ment We re here to help you so if you re looking for more information about a particular topic or have a question about a service issue let us know Feel free to con tact
22. us by phone mail or E mail using the listing on page 2 It s good to be back Mark Stesney 1 2000 Transmissions few CDs The software for navigat ing and displaying service informa tion in Service Information 2000 is written in Java a computer language that allows the information to be condensed onto fewer CDs while providing easier navigation to the information continued on page 2 Table of Content GM Service Operations Just One Click through each service manual section When viewing information after completing a search menu bar but tons allow for zooming in and out to magnity a schematic or diagram so it s easier to read The service information found on Service Information 2000 CDs and on Service Information on the Web is organized by the same service manu GM Tech Link is a monthly mag Easy Access azine for all GM retail techni clans and service consultants n Service This magazine is a companion to a Information 2000 the GM Edge publication e can be downloaded Publisher menee e onto a stand alone Gracemary Allen personal computer VSSM Communications PC right in the ser vice bay Some of Executive Editor ae the computer hara Mark otesney Mane racer aj ne GM Service Operations o VES tens Inuschv1 dzd Om3 eds com requirements to run i i Technical Editors the software include oe 32 Meg of RAM and SUIS apontar PE EE a35 ae harddive Mark
23. wondered what happens to a part you ve removed from a vehicle under warranty In many cases your parts department needs to return the item to GM For instance parts that can be recondi tioned are returned as core parts to GM Service Parts Operations GMSPO Your dealership will not receive credit for the core unless It Is returned properly and prompt ly In other cases parts may be requested to be returned to the GM Warranty Parts Center as part of the Corporate Parts Return CPR program CPR is considered a valuable tool for root cause analy sis of customer product con cerns Experts carefully examine the returned parts to determine what went wrong This analysis future products in order you as a technician have an important role in the process as well can then be used to improve Frequently your dealership will be required to hold a component and then ship it to the appropriate location after the warranty claim is resolved Here s how you can help First be sure your Repair Order is filled out correctly and complete ly The RO is a critical document In the parts return process In fact sometimes the part itself doesn t have to be returned but a copy of the RO will be requested Second be sure to take the removed component to the parts department as soon as the repair is com pleted They will know what to do with the part Third be sure that a prop erly completed warranty parts tag i
24. y in the 10 20 Hz range which is below the range of human hearing so they are felt rather than heard One exception is irregular or flat spot ted tread which may make a growling or Slapping sound Wheel and tire disturbances may be caused by imbalance runout or radial force variations Propshaft disturbances may be related to improper operating angles balance phase or runout All of these conditions are discussed in depth in the service manual EVA Displays The EVA readout displays the three most prominent vibration amplitudes and their fre quencies and will suggest the vehicle sys tem suspected of producing each vibration The vibrations are listed in the order of amplitude because the highest amplitude represents the strongest vibration You can specify that the fre quency be displayed as revolutions per minute or cycles per second Hertz The amplitude of the vibra tion is represented as a G gravita tional force A valuable feature of the EVA is the snapshot function which permits you to store up to 10 vibration events in memory for playback later Even with the EVA unplugged trom its power source the snapshots are retained for about 70 hours As with the original EVA the EVA 2 permits you to connect a strobe light to help determine the proper location for adding balance weights on propshafts It remains your task to inter pret the findings of the EVA using the information found in section 0 of
25. your service manual For convenience the EVA Instruction Manual includes a copy of this section Smart Strobe Another new feature of the EVA 2 is called Smart Strobe Make a mark on the object you suspect is causing a vibration Then connect a strobe light to the EVA fol lowing the procedure in the instruction manu al When you aim the strobe at the rotating object you can adjust the strobe rate until the object appears to stand still At that point the EVA readout indicates the rom of the rotating object which may be useful in your diagnosis And finally dealerships that had an origi nal EVA were provided with a revised data cartridge which updated it to EVA 2 capabili ties Contact Kent Moore at 1 800 345 2233 for more information Jim Horner At every location where an elec trical wire Is connected to a compo nent or to another wire you ll find a terminal It s the metal piece that s crimped to the end of the wire Although terminals are robust enough to do their job for long peri ods of time it s possible for one to become damaged For instance improper disassembly and assembly twisting or forcing can cause damage So will improper testing with a multimeter probe Corrosion and other environmental causes can result in damage as well Damaged terminals must be replaced to restore proper circuit integrity And the replacement termi nal must be exactly identical to the original For the pa

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