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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for October 11, 2008
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Open Help Requests for GM
Help Request Answers
1996 Chevrolet C3500 Cheyenne 6.5L Excessive Emissions, Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 1GBKC34F2T
i just installed diesel injection pump on now can not get pump timing correctly. runs ok until ect reachs 170 then stalls or loads up running extra rich and smoking white. p1214 sets for tdc offset. scanner reads offset 2.46. spec. should be -.25 to-.75 i beli... Trouble codes: P1214
1999 Chevrolet Venture 3.4L MIL Lamp on VIN: 1GNDX03E0X
We have replaced the EGR valve and cleaned the tube leading from the exhaust manifold to the valve. We have also cleaned out the ports in the intake where the valve is mounted but still no fix. Trouble codes: P0401
2003 Saturn Vue 3.0L Misfire VIN: 5GZCZ53B63
This vehicle came to our shop about two weeks ago with the customer complaint that it feels like it is misfiring under a load and at idle sometimes. We scanned the computer for codes and checked the misfire data. The computer had Code P0304 in memory and misfi...

Fixes & Summaries for GM
Fix/Summary Answers
1995 Buick LeSabre Custom 3.8L No Start VIN: 1G4HP52L7S
I tried to start the car with the MAF unplugged, with no change. I pulled the plugs and there was no trace of coolant, and the radiator and bucket were full. My friend opted to change out the crank sensor, based on cost. Luckily it fired up. Thank you for ... Trouble codes: P1670, P0321, P0705, P1361.
2000 Cadillac Catera 3.0L Mechanical VIN: 2W06VR54R7
Thanks to all. It seems that the timing belt can jump if the coolant gets on the belt. Seeing as the water pump is surrounded by the timing belt and doesn't actually contact it I had a hard time believing! Luckily the crank gear was only effected and I was abl...
1997 Chevrolet Blazer 4.3L Torque Convertor VIN: 1GNDT13W5V
Took another transmission to repair the vehicle. The first one was damaged when back yarders took it out and did not bring the torque convertor with it. Instead they left if attached to the flexplate. They let the input shaft rest inside the torque convertor s...
1999 Chevrolet C1500 Suburban 5.7L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: 3GNEC16R2X
Thanks for all your help.I didn`t think the cam sensor would cause that much of a problem on this vehicle, but I replaced it anyway and it runs fine now.Thanks again for all your suggestions.Justin Trouble codes: P0340 (CMP sensor circuit), P0341 (CMP sensor performance).
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