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Prev Professional Automotive Repair Technical Discussions for May 30, 2012
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Open Help Requests for GM
Help Request Answers
1999 Buick Park Avenue 3.8L Circuit 1807
Vehicle presented with intermittent gauge operation, warning lights, and climate control operation. With use of Tech 2, attempted to communicate w/ BCM. No communication obtained. Tested power and ground to all circuits-okay. Removed BCM and found burnt spot t...
1999 Cadillac Eldorado ETC 4.6L a/c not turning on VIN: 1G6ET1299X
After 60 days a "low refrigerent press a/c off" appeared on the instrument located the leak at the low pressure switch replaced with correct cadillac part and evaculated .8 lbs r-134 vacuumed the system 10 minutes reinstalled 2 lbs r-134 and (now) how do I res...
2004 Cadillac SRX 3.6L Spark Plug Tube VIN: 1GYEE63754
We got this cad. In that has oil in the #4 spark plug tube and the seal in the valve cover is not leaking. Is it possible that the tube is leaking at the bottom. Thank you for any help.
2005 Cadillac STS 4.6L engine mount VIN: 1G6DC67AX5
I was wondering if there is a short cut to replacing the l/s engine mount on this STS. Customer was quoted a time of 2.1hrs to replace the mount.it takes that long to pull exhaust manifold.just wondering if there is a way around manifold removal
1998 Chevrolet K3500 Cheyenne 5.7L hydrolics VIN: 1GCHK34R5W
I have this chevy p.u. with a strange clutch pedal. just when u think u saw everything with a clutch something new pops up. truck came in with no pedal.throughout bearing froze up and leaking fluid as fast as u put it in. this truck spends most of its time in ...
2000 Chevrolet Astro 4.3L Engine VIN: 1GNDM19W8Y
Good morning all, i have this 2000 astro , 4.3 eng. and customer went on vacation ( 7 hr drive one way) the engine would sputter and lose power on hard acceleration or going up hill, stopped and put some fuel cleaner in tank and thought it toke care of it but ...
2004 Chevrolet Cavalier 2.2L Hesitation, Surge, Cuts out, Poor Fuel Economy, MIL Lamp on VIN: 1G1JC52F64
Car came in with previous problem hesitation and stalling at stops very poor acceleration. Customer was at a pep boys over the weekend with p0122 they replaced the tps and sent her on her way. Same problem exits she brought it here.The same code exists as well... Trouble codes: P0122
2008 Chevrolet Silverado 2500 HD WT 6.0L Chmsl VIN: 1GCHK29K98
CHMSL stays on at all times. Mitchell shows a relay. Fuse box key does not. Pulled relays one by one and light stays on. CHMLS fuse that Mitchell shows after relay has power at all times. Brake light switch is working fine. Any help you can give. Thanks,
2003 GMC Envoy SLE 4.2L Noise
Car came in with a bad hum noise just like a wheel bearing replaced bearing and its still there driving me nuts sound starts at about 20 mph and does not matter if in 2 or 4wheel drive thanx everyone for your help

Fixes & Summaries for GM
Fix/Summary Answers
1990 Cadillac Seville 4.5L MIL Lamp on VIN: 1G6KS5333L
Idle relearn procedure fixed it. I feel unbelievably stupid but hey thanks guys. This thing has had me chasing my tail for a while now. I know better than this. I drove it this morning and all is well. The prodedure I followed is... Inspect the throttle li... Trouble codes: E052 (ECM memory reset).
2002 Chevrolet Silverado 2500 HD 6.6L No Start VIN: 1GCHK231X2
customer driving truck have not got it back in. going with a new fuel pressure regulator when it comes back. thanks to all that responded.
2007 Chevrolet Impala LT 3.5L cooling VIN: 2G1WT58K37
Yup, you guys were right the coolant temp sensor was occasionally dropping out making the gauge reading drop to zero. We installed a new sensor and it has been good for two weeks now. The PCM programming had evidently called for no AC operation because of the ...
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