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Prev Professional Automotive Repair Technical Discussions for December 1, 2010
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1993 Cadillac Fleetwood Brougham 5.7L brake lights VIN: 1G6DW5273P
Hi this car came to us with the stop lamp fuse blowing out.I have checked the taillights they all are good.I unplugged wire harness in the trunk fuse still pops when pressing on brake pedal.Anyone with some advise to where to go with this would be greatly appr...
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2007 Cadillac STS 3.6L Unknown VIN: 1G6DW67787
I'm hoping someone has seen this before and can point me in the right direction, because I'm totally lost. Customer is complaining of a pulsating groan noise coming from the car starting around 40mph and getting worse the faster they go. Drove the car and hear...
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1990 Chevrolet Lumina 3.1L Poor Idle Quality, Cuts out, Stall VIN: 2G1WL54T8L
i have replaced the fuel filter fuel pressure regulator as well as the temperature sensor and car starts but stalls the fuel pressure drops to 35 psi any help would be great
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1997 Chevrolet C1500 Silverado 5.7L Poor Idle Quality VIN: 2GTEK19R1V
Vehicle after driving and warmed up misses at idle only,.Misfires are always recorded on cylinders 1,3,5,7. sometimes sets P0300 and sometimes sets bank 1 and bank 2 o2 sensor codes. Son replaced all o2 sensors twice. replaced plugs, cap and rotor, also replac... Trouble codes: P0300 (MISFIRE CODEtimes), P0430
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2001 Chevrolet Silverado 2500 HD LT 6.6L 2-1 downshift VIN: 1CHC23101F
I have an allison trans. When it is cold it shifts fine. When it gets warm slowing down from 30mph and you get to the stop and if you wait 2-3 seconds you get a hard bang.if you give it gas as soon as you stop it's not in neutral but feels like your in 3rd. Th...
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2004 Chevrolet Tahoe LT 5.3L Fuel Smell VIN: 1GNEK13T74
Customer complains of a fuel smell near the left rear wheel when she parks the car - confirmed. Could not find any TSB's in Alldata for this but found a couple of on-line postings for 2004 and 2005 Tahoes with the same complaint when I did a websearch. Unfortu...
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2007 Chevrolet HHR LT 2.2L steering VIN: 3GNDA23D37
This should be an easy one for most of you, just want to make sure I have all the information before following up with the customer. I have two questions concerning this HHR. This HHR is like all other electric assist GM vehicles, random ( once a month ) loss ...
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2008 Chevrolet Impala LTZ 3.9L shifter VIN: 2G1WU58338
Could not find a wire diagram for pigtail there are five pins on the solanoid and six wires on the pig tail. One pin was not used on the old connector. Could not find diagram for connector.
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1999 Oldsmobile Intrigue GX 3.5L Knock VIN: 1G3WH52HXF
Car came in with a miss and it had a bad left inner chain adjuster. Found compression on 1 & 3 cyl low but had the same presser 65 lb. Found that the head warrped a good bit. R&r heads miss was gone but there is a knock on the front of the engin and it is more...
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Fixes & Summaries for GM
Fix/Summary Answers
1999 Cadillac Seville SLS 4.6L Not sure VIN: 1G6KS54Y9X
Thanks to all who contributed info to my cause. After de-coupling the torque converter from the flywheel, we started the engine and had no noise. Coupled the converter again and had noise. Decoupled again- no noise. I was 90% sure at this point we had a flywhe...
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1985 Chevrolet K15 Blazer 6.2L Starter VIN: 1G8ED18J0F
Thank you to all that replied to my help request. The starter on this vehicle is 24 volt and the ignition is 12 volt. There is a relay under the dash near the transmission tunnel that was to blame. The relay uses a 12 volt trigger to switch the 24 volts for...
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1998 Chevrolet S10 LS 2.2L No Start VIN: 1GCCS1447W
Well finally got the truck delivered,I got another pcm from the wrecking yard out of another truck w/2.2L that ran good and installed it,then it would start and die, so I sent it to the local dealer to flash the computor,they did and also found a bad wire con...
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2005 Chevrolet Silverado 3500 6.6L battery VIN: 1GBHK39D76
i found that in order to get draw to go away i had to pull several fuses at the same time. the fuses were to radio, onstar, radio amp and another memory module. i suspected that the modules were not going to sleep with the battery in draw test mode. the batter...
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2008 Chevrolet Silverado 1500 LS 4.8L Poor Idle Quality, Hesitation, Surge, MIL Lamp on VIN: 1GCEC14C08
THANK YOU TO ALL THAT REPLIED. AS A FEW OF YOU SUGGESTED, I PERFORMED A WIGGLE TEST AT THE THROTTLE BOY WHILE MONITORING THE APP AND FOUND NO PROBLEMS. I THEN PROCEEDED TO THE APP UNDER THE DASH AND PERFORMED THE WIGGLE TEST THERE AND FOUND A VARIATION IN VO... Trouble codes: P2138 (App sensor 1 2 correlation).
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1999 GMC K2500 Sierra SLE 7.4L long cranking time VIN: 1GTGK23J9X
Thanks for all the help ,I am going to close out this help . Since its my dads truck and trying to fix it on my own time . Majority tells me to check out fpr ,and injectors ,thanks to all for the helpful tips
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