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Prev Professional Automotive Repair Technical Discussions for December 22, 2010
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Open Help Requests for GM
Help Request Answers
2008 Buick Enclave CX 3.6L unknown VIN: 5GAER13748
Hey fellas, we have a low miles buick that has a momentary screeching or chripping noise on start-up. After that it won't do it anymore. Its pretty cold out now but it just started doing it, so not sure if temp affects it. I think it is a power steering pump,s...
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2004 Cadillac CTS 3.6L ebcm VIN: 0G6DM57704
Car came in with service stability sys and service brake assist going across information center. The traction off light was on. Scanned all computers. Engine drag control, traction control system, and vehicle stability enhancement systems all showed failed in ...
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1994 Chevrolet C1500 5.7L Hesitation, Surge, Stall VIN: 2GCEC19K3R
When the engine does run it maintains 17 in of vacuum and timing stays @ tdc Trouble codes: 33 (manifold absolutemap signal voltage high)
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1997 Chevrolet C1500 Silverado 5.7L 1-2 Shift VIN: 2GCEC19RXV
After trans. Was replaced it shifted fine in town but once on the highway i noticed there was no lockup.after coming off of highway back into town trans would have hard 1-2 shift every time you stopped and started off again.trans. Keeps coming back with a p187...
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1997 Chevrolet Tahoe 5.7L high idle VIN: 3GNEK18R4G
Hello all, me again from martins. have a 97 tahoe with idle problem. after driving down highway and come to stop, truck wants to idle anywhere from 1200 to 1800 rpm. Watching modis Iac is commanded to around 46, and i know the counts should be around zero at i... Trouble codes: P0507
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2001 Chevrolet Tahoe 5.3L blend door VIN: 1GNEC13T71
possable help on this one cust came in stuck on defrost not full auto system on a/c has manual knobs elect contorl motors. blend door will move some times when unpluging motor & pluging it back in pulled a/c control unit out & pulled apart did not see any brok...
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2003 Chevrolet Impala 3.4L Accessories VIN: 2G1WF52E63
We had vehicle come in customer requested battery be cheanged. changed battery and security light comes on and lights flash but car starts. Checked bcm and cannot get data for theft.Called dealer and talked to tech that said bcm was bad. Have not installed new...
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2003 Chevrolet Avalanche 1500 Z71 5.3L Keyless Entry VIN: 3GNEK13T03
Hey everyone. I'm having an issue with a customer vehicle. It is a 2003 Chevy Avalanche 1500, and the problem is with the remote keyless entry. Neither of the FOBs lock, unlock, or "panic". I went into the passenger door module using a Tech2, and the module sh...
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2000 GMC Jimmy SLT 4.3L Transfere Case VIN: 1GKDT13W0Y
Vehicle came in with 4WD service light on and no engagement of 4WD. The selector switch lights will not light up at all, even when started for check. Found corroided transfere case control module (tccm) and harness. Replaced module tih used moduel, same number...
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2002 GMC Envoy SLT 4.2L transfer VIN: 1GK4T24S62
Hey G.M Gurus, I have a weird one for you. Vehicle has 2 speed selectable 4wd, A.K.A. 2wd, 4wauto, 4wd high,4wd low. vehicle makes popping noise under light load or decel in Auto select only. doesn't pop doing circles in parking lot. It doesn't hop either (lik...
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2003 Pontiac Bonneville SLE 3.8L Poor Idle Quality, Cuts out, Stall, Misfire VIN: 1G2HX52K43
vehicle has a skip at idle and under load. injector service was done by someone else and it got worse. fuel trims are -1 to plus 2. mass air floe at 3.75gps map volts 1.25 at idle. no codes or freeze frame and now it cuts out at idle like someone shut off the ...
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1995 Saturn SL2 1.9L Surge, Cuts out, Misfire VIN: 1G8ZK5276S
Intermittent starts to misfire then dies. Starts right back up. Will eventually store a crank sensor coe 19. Is fine when driving, usually acts up on deceleration. Will even die in shop. Trouble codes: 19
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Fixes & Summaries for GM
Fix/Summary Answers
1991 Buick Regal Custom 3.1L Ignition Lock cylinder VIN: 2G4WB51TOM
This one is fixed finally. Anthony [...] were right on the ball when they said that the pivot pins had to be removed from both sides, after the signal switch has been removed and lowered down to give access to the ...
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1998 Buick LeSabre Custom 3.8L No Start VIN: 1G4HP52K2W
Sorry for the delay all, we found a large vacuum leak on the plastic intake assembly, replaced intake and all is working as designed. Thanks again.
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2001 Chevrolet S10 4.3L Hesitation, Cuts out, Stall, MIL Lamp on VIN: 1GHK45SD34
Don from TN nailed it! I started it up gave a good wiggle to the coil electrical connector and wires and it died. I fixed up that connector and no problems so far. I'll post a reply later if anything else comes up. I did check the crankshaft endplay and it def... Trouble codes: P0300.
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