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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for June 4, 2011
International Automotive Technicians' Network (iATN) - Members Only
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for GM
Help Request Answers
1998 Buick LeSabre Custom 3.8L drum brakes
Replaced brakes and hear brakes rubbing took apart and readjusted lubed test drove. complaint still there.
1995 Chevrolet C3500 7.4L not switching fuels VIN: 1GKC34N5SJ
Vehicle just purchased. runs on gasoline. Propane was disconected or never finshed. Model is 350 HP Borg Warner. I need some wiring info on the propane.
1998 Chevrolet Astro 4.3L Injectors VIN: 1GNDM19W4W
The van died on the road, tried to start a few times letting it set for a period, crank no start. Tow truck guy got there a few hours and it started, towed it to me and it started. Drove it a few miles and parked it and after that it wouldn't start. Fuel press...
2000 Chevrolet Venture 3.4L starter VIN: 1GNDX03E4Y
Hi Members: This Venture van was towed in with a no crank problem. The owner tried to fix it himself by installing a new starter to no avail. All dash warning lights come on koeo. The security light is not flashing and there are no codes stored in ecm. After s...
2004 Chevrolet Astro 4.3L Excessive Emissions, Poor Idle Quality, Stall, MIL Lamp on VIN: 1GCDM19X14
vehicle was towed into shop for overheating issue. cust stated ran hot and engine started rattling. temp gauge was erratic. thermostat was stuck closed. replaced thermostat.also temp sensor reading on scanner showed erratic. found temp sensor wires have been h... Trouble codes: P0118
2003 Saturn Vue 3.0L MIL Lamp on VIN: 5GZCZ53BX3
Need some help. Wondering if anyone has any usual suspects on this code. I do not have a smoke machine and was hoping someone could help narrow my search or recomend parts? Trouble codes: P0442

Fixes & Summaries for GM
Fix/Summary Answers
1996 Chevrolet Tahoe 5.7L Transfer case VIN: 3GNEK18ROT
This model vehicle doesn't offer data stream info for 4wd, so all testing is done manually. The reason for my confusion was that the diagnostics said to replace the encoder/motor, and I looked at the transfer case and saw a 2 wire motor, and the motor worked,...
2002 Chevrolet Silverado 2500 HD 6.6L crankcase VIN: 1GCHK23132
Thank you to all who have contributed information on this problem. Despite removing both the upper and lower valve covers and dye checking the injectors, return lines, and high pressure pump seal, we still could not pinpoint the leak. After a conversation wit...
2004 Chevrolet Impala 3.4L No Start, Poor Idle Quality, Cuts out, Stall VIN: 2G1WF52E74
It is fixed.The problem was trying to find a problem that only occurred ocasionally.I installed a reman pcm then the problem got much worse.I checked the purple power feed to the pcm and was losing voltage during the problem.This wire is fed from the ignition ... Trouble codes: P0520, U1000 (-Radio code - class 2 data link malf.), U1016 (-Airbag code -), U1255, B2618, B2655.
2005 Chevrolet Silverado 3500 6.6L MIL Lamp on VIN: 1GCHC23205
Thanks to everyone who replied. All replies are greatly appreciated, and everyone had good ideas. We did a pass-thru programming as Reid, Paul, John, and Jacob suggested and it worked just fine. Prior to filing an IATN request, we had called a tech line (wh...
2005 Chevrolet Trailblazer LS 4.2L starter/passkey VIN: 1GNDT13S45
This vehicle has not returned and the vehicle owner has stated the problem has not reoccurred. The last repair I did was to clean the grounds on the left of the engine block that go to the instrument harness as well as the body grounds on the outside of the l...
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