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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for October 7, 2011
International Automotive Technicians' Network (iATN) - Members Only
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
2000 Cadillac DeVille 4.6L No Oil Pressure VIN: 1G6KD54YXY
Hi: After replacing the alternator and draining the engine oil, replacing the filter and installing 5 quarts we have no oil pressure. The drain plug was out for no more than 15 minutes.After running the engine for about 15 seconds, the engine was stopped. We t...
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2001 Cadillac DeVille 4.6L Unkown VIN: 1G6KF57971
Vehicle has a shudder or vibration felt under load on acceleration. Can be felt through the floorboard & seat at 18-21 mph then again comes in at 45 mph & up. Have inspect motor & transmission mounts-good. No play in steering components. Tire balance is good (...
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2000 Chevrolet Express 3500 5.7L No Start VIN: 1GDJG31R9Y
This is a delivery van for the school district here that gets very little use. At first start in the morning when I try to start it it just spins over and will not start then I will turn the key back to off and then back to start and it will usually start righ...
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2001 Chevrolet Impala 3.4L Starting System VIN: 1J23H43455
This car will not crank. THe factory radio has been removed. From testing I know that the PCM is not grounding the Crank Relay. What I dont know is why. The security light does not flash, but stays on (cycling with the battery light, change oil soon, wiper flu...
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2003 Chevrolet Silverado 1500 4.3L Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GCEK14X33
This truck has me stumped!!! O2 Sensors installed but vehicle misfires after 5-10 miles and FT%/ST% above threshholds after driving. O2's flatline and system dumping fuel due to lean condition. Inspected spider assy with fuel pump running and no detectable lea... Trouble codes: P0151 (O2 Switching), P0174 (Excessive Lean Bank 2), P1153 (No Switching)
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2004 Chevrolet SSR 5.3L battery drain VIN: 1GCES14P24
I think I have covered about everything I can think of. The battery is fully charged when I tested the draw with the key off.
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2004 GMC Envoy SLE 4.2L Hesitation VIN: 1GKDS13S44
Hello IATN compadres...I don't post many help requests but this Envoy is kicking my hiney... This vehicle was driven in by customer. The primary complaint was now power under acceleration and it boggs really bad (customers words). We test drove and confirmed ...
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2002 Pontiac Firebird Trans Am 5.7L Poor Idle Quality, Stall, MIL Lamp on VIN: 2G2FV22G92
Ok, I tried an f-body/LS1 forum first and since it's already written, I will paste it in here... Short story - I'm a tech at an independent Honda/Japanese specialist. We do work on domestic, but it is less advertised. I pretty much do all the diagnosing and t... Trouble codes: 300 (random)
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Fixes & Summaries for GM
Fix/Summary Answers
1994 Chevrolet C2500 Silverado 6.5L No Start, Stall VIN: 1GCGC29FXR
Sorry for the time to close, I wanted to make sure this was fixed. So mmany different shop had worked on this truck in the past with no success. I was the injector driver module that cured the problem. He had it replaced before but with used ones. Thanks for a...
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2005 Chevrolet Aveo LS 1.6L Hesitation, Cuts out, Stall VIN: KL1TD62665
Problem was very infrequent and customer was unable to leave the car with us any longer. After 3 weeks of driving it she reports the problem has not occurred any more at all. I'm suspecting the EGR could have been partially plugged and subsequently cleared up ...
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2001 Pontiac Grand Am SE 3.4L bcm VIN: 1G2NF52E61
Thanks to all that replied to my request,,looks like my little shop is not equipped to address this issue, need the dealership to flash the bcm to the computer, turns out the car has bad head gaskets and the customer is not in a financial position to fix that ...
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2003 Pontiac Vibe GT 1.8L Hesitation, MIL Lamp on VIN: 5Y2SN64L23
i was giving it some time to know for sure if it is fixed or not. i ended up running 2 injector cleans on it and added one to tank and had custmer drive. talked to customer twice now and he says its running fine. Trouble codes: P0171.
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2007 Saturn Vue 3.5L No Start VIN: 5GZCZ63417
I am forced to close this request without a fix. The customer has decided to take it to a dealer with the hope that it will still be under the powertrain warranty, but not till after we had many hours and a few parts into this thing. I went ahead and replace... Trouble codes: U2105 (Lost Communication with PCM), U2106 (Lost Communication with TCM), U1016 (Lost Class 2 Communication with PCM).
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