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Prev Professional Automotive Repair Technical Discussions for April 18, 2012
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Open Help Requests for GM
Help Request Answers
1994 Cadillac Seville STS 4.6L heater pipes VIN: 1G6KY5291R
Ok need a little help if anyone has done a set of heater pipes this type of car what is the trick to getting them out from behind the motor i looked on alldata found no service procedure just wondering if anyone has done what or has some tricks to help me out ...
1992 Chevrolet K1500 Cheyenne 5.7L Spedometer VIN: 1GCEK14K2N
Hi this trucks speedo will shot up to 75-90 mph from were ever you first push the cruise control to set then it will ficker from 75-90 then slowyly come down to corect speed and then will ficker up any time the speed changes I checked speed with my scaner an...
2001 Chevrolet S10 4.3L Hesitation, Misfire, MIL Lamp on VIN: 1GCCT19W01
this is an 01 s10 4x4 we recently installed a 350 vortec engine (r) code engine was out of 99 van. Engine is new with a comp cam 08-501-8. The intake distributor injection and all are factory vortec parts. crank sensor is for a 350. computer is flashed for an ... Trouble codes: P1345
2004 Chevrolet Trailblazer LS 4.2L cruise control VIN: 1GNDT13S34
Customer just bought vehicle. Cruise Control works properly until reaching 73-74 mph then shuts off automaticly, cruise indicator on Instrument panel goes off. If you keep the cruise acc. switch on multi function switch pressed as soon as speed hits 65 cruise ...
2004 Chevrolet Monte Carlo LS 3.4L radio VIN: 2G1WW12E14
Hi guys, Got one here has me stumped. Car comes in with air bag light on and no volume from radio. Customer stated that when airbag light would come on there would be no volume from radio. AB lightis on constant and no volume. We tried a radio from a junkyard ...
2004 Chevrolet Venture LS 3.4L transmission VIN: 1GNDX03E94
Customer came into shop with a complaint of one clunk when starting to go up a hill or accelerate from a stop. Will not make the noise when shifted to First manually. Engine mounts are all good. Torquing in Reverse or Drive at a stand still will replicate t...
1991 GMC K3500 Sierra 6.2L transfer case
Good evening Gentlemen, First I apologize for the long post, This vehicle is an ex military command unit from the British Army, built over here and used in operations in the middle east, the lady owner shows it at various rallies in our short cold summers so i...
1997 GMC K1500 Sierra SL 5.7L No Start VIN: 2GTEK19R4V
cranks no spark from wires but has spark at coil
1997 Oldsmobile Aurora 4.0L pops back/intake VIN: 1G3GR62C4V
Now over the last few months it developed the above codes and I have not seen that the t.c. clutch has been a problem but we flushed the trans and put conditioner in it to keep it alive as best as possible. Very nice car. Though it has developed a lean type ba... Trouble codes: P0741, P00, 420A, P1139, P1537

Fixes & Summaries for GM
Fix/Summary Answers
2002 Cadillac Eldorado ETC 4.6L Lighting VIN: 1G6EC12972
Replaced light sensor and this solved the problem. Thanks for all the help on this one.
1997 Oldsmobile Aurora 4.0L ebtcm VIN: 1G3GR62C6V
Sorry for the delay in closing this, its been real busy. I dont make it a habit of letting cars win, but I could not get this one. I sent it to the dealership. I had two reman ebcm, that I feel I could not trust, and the customer, i feel was not willing to sin...
2004 Pontiac Aztek 3.4L Oil VIN: 3G7DA03E34
Thanks for all the help with this one. It ended up being a sheered oil pump drive gear. The cam looked fine. Not sure if the old oil pump caused the gear to sheer or not. We originally replace oil pump. After checking and replacing drive gear all is well. No e...
2005 Pontiac Vibe GT 1.8L MIL Lamp on VIN: 5Y2SN63L45
PCM was the cause. It was not commanding the Shut-Off valve solenoid on. No recall on that part. That spec for the sensor, 4.5V to 5.0V seems to be misleading, I got 1.6V KOEO. Went to 2.0V with KOER, valve open. Trouble codes: P2441, P2445.
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