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Prev Professional Automotive Repair Technical Discussions for April 3, 2010
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Open Help Requests for GM
Help Request Answers
1995 Chevrolet Tahoe 5.7L rough run on start VIN: 3GNEK18K05
passages none no codes when acts up hit map sesor runs fine.shut vehicle off wait till next day. start vehicle cold roughe run hit map run fine anyone seen this one before. thanks in advance. imsuspecting map would like
1997 Chevrolet Cavalier 2.2L Poor Idle Quality, Surge VIN: 1G1JC1242V
Car was brought to me after suddenly started revving engine as soon as started and all the time. Checked for codes and only found ones the customer had caused by unplugging various sensors. Checked with scan tool and found the map would never change, checked p...
2007 Chevrolet Cobalt LT 2.2L MIL Lamp on VIN: 1G1AL15F17
Dear iatn techs. I have this cobalt here that has been coming in for a check engine light on. Code P1174 set. First time this car came in, a different tech worked on it(july 2009). Found a bulletin to do an injector flush on vehicle. Ran fuel injector flush. C... Trouble codes: P1174 (fuel trim cylinder balance)
2004 Oldsmobile Bravada 4.2L trans inop at times VIN: 1GHDT13S24
Trans is inop at times. It seems to work fine when cold. Scaned system and no trans codes. Scan data display shows park and neutral ok but when put in rev or drive gears it will show "inv" when the trans is inop. If the trans is working it shows all gears sele...

Fixes & Summaries for GM
Fix/Summary Answers
2001 Buick LeSabre Limited 3.8L Front Control Arm Bushings VIN: 1G4HR54K21
IATN IS Awesome - Again. Special thanks to Steve from Indiana for the Rock Auto Lead. Parts on order. Issue closed.
1993 Chevrolet Corvette 5.7L interior lighting VIN: 1G1YY33PXP
Thanks for all the help it ended up that the key switch in the door was keeping the lights on. The key was worn out so you could take the key out of the door before the key was stright up and down, so if you removed the key the lights would stay on. Had a new...
1995 Chevrolet P30 7.4L Stall VIN: 1GPLB37N25
Thaks to all who replied. Me, being a Volvo tech,this motorhome was like a foreign car to me. Turns out the oil pressure switch was the culprit. Checked all the wiring for chafing , to no avail, and replaced the oil pressure switch. Thanx again..Tim...from St ...
2007 Chevrolet Equinox LS 3.4L power steering control module VIN: 2CNDL23FX7
well new module came from dealer, and i programed it and performed steering wheel angle sensor calibation and steering started to work its been on the raod for about a week and all looks well. i wana thank everyone who replied.
1990 Pontiac Grand Am LE 2.5L Thermostat VIN: 1G2NE54U6L
All you folks helped keep Bruno from killing me, Thanks a Ton. Well I guess we'll have to call it a fix. Lucky Larry (Bruno) Will not part with the money fo fix this poor thing after I let him read your posts. He picked right up on the part where It'll probab...
1997 Pontiac Grand Am SE 3.1L Gear Selector VIN: 1G2NE52M9V
Thank you to all who replied. I unplugged the A/C compressor and the fuse has not blown since. The customer has not decided if he will replace the compressor.
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