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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for June 25, 2013
International Automotive Technicians' Network (iATN) - Members Only
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Open Help Requests for GM
Help Request Answers
1995 Chevrolet K1500 5.7L No Start VIN: 2GCEK19K2S
Thanks in advance, no start, doesn't even try to start, suspect no fuel delivery to cylinder, now have fuel pressure and good spark, good compression. Must be missing something, no codes. Help?
1995 Chevrolet Corvette 5.7L Water pump drive seal leak VIN: 1G1YY22P4S
Car came in for leaking water pump. Cust brought new A/C Delco water pump and new MSD distributor. After repairs water pump drive seal leaking. Replace seal twice with tool and it still leaks when car gets hot at cruise speed. Verified leak with dye. I've now ...
2000 Chevrolet Express 1500 5.7L air conditio VIN: 1GBFG15R4Y
This wonderful van makes 55 degree air sitting still at idle & goes even lower when holding throttle at 2000 rpm. Drive the van in 90 degree weather & after 5 miles or so the vent temperature goes to 72 degrees in small increments. Stop & idle in gear for a fe...
2003 Chevrolet Silverado 1500 5.3L door switches VIN: 1GCEK19TX3
Left door module is totally inop: no locks, windows, mirror control. Replaced twice with salvage yard units. Noticed that these have a microprocessor below the switches, and am wondering if this needs to be VIN flashed to the truck...Have power and ground to t...
2004 Chevrolet Classic LS 2.2L No Start VIN: 1G1ND52F94
At the ignition module intermdiate connector (this is where the module hooks to the coil tower) the noid light either doesn't flash or is dim and will not run. If the light is bright it runs. The issue seems to be the control (ground) ciruit for the coils is n... Trouble codes: B1379 (device ign 3 circuit), U1000 (loss of serial data for class 2), U1088 (loss of SRS/SDM comm)
2000 GMC Sierra 1500 SL 5.3L Solenoid A VIN: 1GTEK19T5Y
Thank you for taking the time to help. The customer complained about shudder during take off, slipping, and shudder during TC lockup. We've been talking about needing to rebuild this original unit before he can trust it towing a 10000lb travel trailer. Before ...
2007 Pontiac Grand Prix 3.8L engine VIN: 2G2WP55227
Greetings, Hoping for some help on this one. The problem we have is vehicle is smoking out of tailpipe. This car belongs to a used car lot. 3 months it had a check engine light on and the engine was misfiring. We found low compression on 1 cylinder and leakag...
2008 Pontiac Grand Prix 3.8L Surge VIN: 2G2WP55248
This car has a surge that I can't pinpoint the cause of. It occurs only while under light load, usually while going uphill. And only between 50mph and 65mph. It doesn't appear to be a misfire, only a 100-200 rpm surge. There are no codes stored, no misfires sh...

Fixes & Summaries for GM
Fix/Summary Answers
1997 Chevrolet Blazer 4.3L Power windows VIN: 1GNCS13W4V
Thank you to all who replied! You guys hit it right on the head. Pulled down the cover and was able to duplicate the problem. Installed new one and the problem is gone for now. Thanks again! Abe
2007 Chevrolet Equinox LT 3.4L Electric Power Steering VIN: 2CNDL73F97
Vehicle is fixed. On this style of GM electric power steering assist system, the steering angle sensor is part of the motor that bolts on the column. Separately there is a torque sensor inside the column. This Equinox would not allow the Tech2 to calibrate t...
2006 Pontiac G6 2.4L No Start VIN: 1G2ZF55B86
after several hours of test . it was a hard failure of the theft detterent module. new module and programming it good to go. thanks iatn menbers Trouble codes: B1325 (ignition 1 voltage), P0650, P1682, P0690, U2137.
2006 Pontiac Montana SV6 3.5L Hesitation, Stall, VIN: 1GMDV33L56
Had to send this one out for help the gm dealership solved the problem with anew bcm thanks for all the help
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