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Prev Professional Automotive Repair Technical Discussions for February 17, 2014
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Open Help Requests for GM
Help Request Answers
1992 Chevrolet C1500 Cheyenne 5.7L No Start, Stall, MIL Lamp on VIN: 2GCEC19KXN
I have a truck here that's runs great for a min then loses it signal to open the injectors the noid light wont flash ok when this happens I lose my rpm reading too I don't see a crank sensor on this truck if I spray carb cleaner in it it runs this is the other... Trouble codes: 15 (coolant temp voltage high)
1998 Chevrolet Camaro Z28 5.7L Clutch Hydralic System VIN: 2G1FP32GXW
This vehicle first came into our shop last month with a clutch pedal that would go to the floor and not return on its own. We found the slave cylinder leaking. Replace the slave cylinder with a OEM dealer slave cylinder which seemed to have fixed the issue. Th...
1999 Chevrolet K1500 Suburban 5.7L Poor Idle Quality, Cuts out, Misfire VIN: 3GNFK16R5X
Vehicle has new plugs, cap, rotor & cam sensor. #3 & #6 cylinders are not working. Injectors are working, both cylinders have spark & compresson, no intake vacuum leaks, EGR valve is working & not stuck. Engine runs good after installing 2 new plugs for about ... Trouble codes: P0141 (p0300-), P0300 (testing and results)
2002 Chevrolet Silverado 2500 6.0L noise VIN: 1GCHK23U12
Replaced, idler pulley, tensioner and alternator and belt.
2003 Chevrolet Express 2500 5.3L Brake Pedal
Hello all, this van has been a nightmare for me over the past week. What happens is that during a panic stop the rear brakes lock , brake pedal goes to the floor and brake light comes on. The rear brakes drag for several seconds than release and vehicle will c...
2008 Chevrolet Equinox LT 3.4L Misfire, MIL Lamp on VIN: 2CNDC33F98
Hello everyone and thanx in advance, we have a issue with a 2008 chevy equinox. vehile came in 2 months ago with only a p0303 misfire on cylinder 3. found a cracked spark plug long ways, we replaced all 6 plugs with ac plugs, car runs fine. 3 weeks later she c... Trouble codes: P0303 (Cylinder 3 Misfire Detected)

Fixes & Summaries for GM
Fix/Summary Answers
1999 Cadillac Seville STS 4.6L instrument cluster,door locks,fuel door,trunk, VIN: 1G6KY5497X
i have not been able to fix this car yet its not the ignition switch and have found after unhooking and hookin up every moudle and the rear fuse box everything has come back except the radio does not work thanks for the replies
2001 Chevrolet Impala 3.4L Hesitation, Cuts out, Stall, MIL Lamp on VIN: 2G1WF52EX1
Thanks everyone with your help with this one. I may not have been real clear as to what the sequence of the issues we were dealing with were. At fist the car came in with all the codes listed above and it had driveability issues like stalling, hesitation, and ... Trouble codes: P1133 (Ho2s insufficient switching sensor 1), P0134 (Ho2s insufficient activity sensor 1), P1635 (5 volt reference circuit 1), P0140 (Ho2s insufficient activity sensor 2), P1404 (Egr closed position performance).
2004 Chevrolet Trailblazer LS 4.2L Poor Idle Quality, Surge, with a/c compressor VIN: 1GNDT13S94
Most who replied were correct about "relearning the idle" or reflashing of the PCM. Some suggested replacing the throttle body. However, that is an expensive part and this one was not failing. I took the battery cables loose from the battery and touched them t...
2006 Chevrolet Tahoe Z71 5.3L stability control VIN: 1GNEK13TX6
Hello all thanks for the great advice. I determined that I have a defective steering angle sensor, or a dinked up collum. I failed to mention in my original request that the wheel was slightly off to the left. I cleaned and replaced one of the front speed sens...
2008 Chevrolet Cobalt LT 2.2L parking lights VIN: 1G1AL58F58
I really appreciate everyone's input. The cars been on the road for a week with no issues. This problem was intermittent enough I wanted to give it a week before I reported. Betweeen plowing snow, keeping up with existing workload and having a headache Cobalt ...
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