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Prev Professional Automotive Repair Technical Discussions for August 1, 2013
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Open Help Requests for GM
Help Request Answers
1991 Buick Skylark 2.3L Excessive Emissions, Poor Idle Quality, Surge, Poor Fuel Economy VIN: 1G4NV14DXM
The vehicle is surging bad and putting out black smoke, with A/C on. After it starts surging you can shut the A/C off and it will still surge just not as bad. I checked the air intake no issues found. cleaned throttle plate. while vehicle is acting up I can re...
1998 Chevrolet Corvette 5.7L CD changer VIN: 1G1YY22G8W
Customer brought vehicle in with complaint that when switching from radio to cd, intermittently will get ERR display and cd player will not work. We have had vehicle for 3 days with 4 different people trying it and have NOT duplicated the problem. It has am/fm...
2007 Chevrolet Suburban 1500 LTZ 5.3L Axle seal VIN: 1GNFK16337
Front, left axle seal leaking. Original visit found stub shaft pitted and chewing seal. Customer in a hurry and could not wait to obtain replacement shaft. We cleaned up shaft and replaced seal. One month later shaft seal leaking as we thought it might with th...

Fixes & Summaries for GM
Fix/Summary Answers
1998 Cadillac Eldorado ETC 4.6L window VIN: 1G6ET1294W
thanks to all who offered help...the problem was pink wire was short to ground in side roof panel,on rear rt passenger side.the relay was also bad probably because of the short...once again thanks to all...
2001 Chevrolet Silverado 1500 5.3L Obdii monitors VIN: 2GCEC19TX1
Hi there, good day to all, after reading 31 replays, this truck is fixed, after running the evap test and AIR test time and time again , we checked for pending codes, but none was found.then we check for failure records, voila, d.t.c. po452, fuel tank pressure...
2002 Chevrolet Impala 3.8L Poor Idle Quality VIN: 2G1WF55K52
SOLVED First of all I would like to thank everyone for their inputs and suggestions. IATN is and has been an awesome resource for information. I hope I answered everyone’s questions and provided all pertinent information. This has been a nightmare, but it ... Trouble codes: P0463 (Fuel Level Sensor Circuit High Voltage).
2003 Chevrolet Venture LS 3.4L Stall VIN: 1GNDU03E53
hey first of all I would like to thank everyone who had something to add to this request, it really is good to know that you have people ho are willing to take time and lend a hand, after replacing the fuse box this allowed the vehicle to start and run after ...
2004 GMC Envoy SLE 4.2L Poor Idle Quality, MIL Lamp on VIN: 1GKDT13S24
thanx for the positive responses,but this was a used car facilty's choice to put it back to the auction.after i installed solenoid it would only set code cold.i would've liked to checked the chain but??? hope this helps someone down the line.thanx again. Trouble codes: P0016 (Cmp/ckp correlation).
2005 Pontiac Grand Prix GT 3.8L Cuts out, Stall VIN: 2G2WS52245
First off, thanks to all the replies! And Kudos to Gene, Roger, Keith and Bill. It turned out to be the Crank sensor as suggested by all of them. Its very frustrating to have something like that not set a code and just "blip" enough to stall car, then work aga...
2008 Pontiac Solstice GXP 2.0L Excessive Emissions, Poor Idle Quality, MIL Lamp on VIN: 1G2MG35X18
Thanks for the replies it helped me make a decision. The high pressure pump was leaking internally into the engine. checked the oil level it was high and reaked of gas (explains rich codes gas sucking thru pcv system). changed pump, oil, filter all is well. Go... Trouble codes: P2188 (Fuel trim rich at idle), P0089 (Fuel pressure regulator performance), P0087 (Fuel rail pressure too low), P1288 (Ft system rich at idle).
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