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Professional Automotive Repair Technical Discussions for May 7, 2008 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2008 Buick Enclave CXL 3.6L sir VIN: 5GAER237X8 Hello everyone, I've got a tough one here. The vehicle is a 2008 buick enclave. It came to me from a body shop after a collision repair.The sir light was on the dash. The air bags deployed,so I replaced the sdm and programed it through tis2web with a tech 2 sc... |
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| 1998 Cadillac DeVille 4.6L steering VIN: 1G6KD54Y3W this car is showing the warning " service steerring system " it has the c 1241 code and the diagnosis routine followed step by step conduct to replace ebtcm . caddy experts : is a common failure on this vehicles the ebtcm defective causing this code ? we nee... |
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| 2001 Cadillac DeVille DHS 4.6L Poor Idle Quality, Surge VIN: 1G6KE57Y41 car surges at idle up and down and sometimes surges hard enough to die out. seems to be worse after it warms up. smoke tested and found a leak at the boot that attaches the throttle body to the intake, went ahead and replaced the boot and intake gaskets. still... |
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| 1996 Chevrolet Caprice Classic 5.7L Poor Idle Quality, Surge VIN: 1G1BL52P2T Hello everyone. I have a 1996 Impala SS 5.7/auto(caprice) that has an intermittent rolling idle problem. It will sit and idle fine around 700 rpm and then without cause start to surge up to 1000-1200 rpm. The problem will happen cold, hot, in gear and neutral.... |
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| 1996 Chevrolet C1500 Cheyenne 5.0L Excessive Emissions, Hesitation VIN: 2GCEC19M7T This truck came in with symptoms of intermittent run rough, idles low and almost stalls. Sometimes doesn't happen a few days in-between. Customer says problem only lasts a few seconds. Of course I can't get any of the symptoms to occur. The tps sweeps good a... Trouble codes: P0122, P1122, P0172, P0175, P1406, P0748 |
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| 1997 Chevrolet S10 LS 4.3L Hesitation VIN: 1GCCS19W4V with the genesis scan tool hooked up,stft is fluctuating just above and below 0. after runtime of approximately 5-10 minutes stft strats increasing on plus side to around 50 both banks. prior to this you could stomp gas pedal to floor and engine revs normally,... Trouble codes: P0131 (o2 sensor bank 1 sensor 1 low voltage) |
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| 1997 Chevrolet Cavalier 2.2L Heater Core VIN: 1G1JC5247V This Cavalier is on it's 3rd heater core failure. They seem to last about 2-3 months. The last one was a factory part. During the last replacement we added engine grounds and thuroughly flushed the cooling system with green coolant. We also checked for exhaust... |
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| 1998 Chevrolet K1500 Cheyenne 5.7L ??not certain VIN: 1GCEK14R7W This truck origionally came into the shop because the rear brakes were locking up. It would only happen first thing in the morning and after hitting the brake pedal and going forward and reverse the brakes would free up and work fine. I found a wheel cylinder ... |
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| 1999 Chevrolet Express 1500 5.7L tansmision VIN: 1GNFG15R8X We had did some other repairs a weak ago rear ac lines and one of the techs noticed the trans shifting very early and told customer he said it was normal for the van. Well it gets towed in like the brakes are locked up low 1 and reverse and low 2 are fine but ... |
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| 2000 Chevrolet Blazer LS 4.3L immobilizer VIN: 1GNCT18WYK Good morning or afternoon, Wherever you are in the world - thanks for your help in advance. I require help in regard to a problem we have with a 2000 (prod date 10/99) Chevy Blazer to which we have no service information. Originally the vehicle came with 2 rem... |
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| 2003 Chevrolet S10 4.3L Poor Idle Quality, Hesitation, Misfire VIN: 1GCCT19X23 Install new gasket on intake and can not get distirbutor timing set it has a poor idle... and no power lined up timing marks correctly...the books and manuals say no timing adjustments... their is no codes no vaccum leaks me just stumped... any chevy fans than... |
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| 1998 GMC K3500 Sierra SL 7.4L brakes VIN: 1GCHK34J3W Well, here is a real challenge for you guys - seems like the classic dirty / rusty / scaly wheel sensor mount, right? well, read on - because that didnt fix it either. This is a plow vehicle, which is well cared for and not abused. All regular maintenance pe... |
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| 2003 GMC Sierra 2500 HD SLE 6.6L transfer case VIN: 1GTHK23173 The truck came with a low transfer and noise, no sign of a leak. Thought it must be leaking into tranny through front seal. Pulled t-case, rebuilt to fix slight damage from low on fluid, replaced the seals. Now it came in for the first oil change after that re... |
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| 1995 Oldsmobile Cutlass Ciera 3.1L Poor Idle Quality, Stall, MIL Lamp on VIN: 1G3AJ55M9S This Olds runs great, but it cuts out and dies in gear at idle. Code p0341 for cam shaft sensor. Lab scope shows erratic pattern coming out of sensor. Replaced sensor with no change. I doubt we have an ecm issue because it is probably seeing the same thing my ... Trouble codes: P0341 (Cam position sensor) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1989 Buick Reatta 3.8L No Start VIN: 1G4EC11C5K Hi all Finally got time to spend on this vehicle. It turned out that the negative battery cable was the cause. There was no corrosion on the cable but the end that is attached to the battery was a cable with 3 large wires moulded into the end. cut away the... |
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| 1983 Cadillac Eldorado 4.1L Poor Idle Quality, Surge, Misfire VIN: 1G6AL5787D Well, first off, thank you to everyone that supplied any information. Everything posted was looked at and verified before moving on. I had a lot of replies suggesting that I check cam lift. I followed up by checking that I did infact have even cam lift on all ... |
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| 1994 Cadillac Seville STS 4.6L MIL Lamp on VIN: 1G6KY5290R Ok this tugboat is fixed. Replaced PCM & all is well. Thanks for all the help. It was a real pain doing the idle & TPS relearn, but car runs great & no check engine light. Thanks, Bill Trouble codes: P0025, P0041. |
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| 1998 Chevrolet Tahoe 5.7L On Star VIN: 3GNEK18R5W Thanks to all who replied ( except for wade who made me stupider for reading his B.S. ) I have concluded that a 1998 chevy tahoe onstar system is absolutely non-upgradeable at this time. I do feel that I have a case against the GM dealer that sold me the sys... |
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| 1998 Chevrolet C2500 Cheyenne 5.7L No Start VIN: 1GCGC24R1W Thanks for all the quick replies. THis is still the best source of info for techs. I did as most of yall said and rechecked the fuel pump and sure enough when the truck would not start it was only putting out 40psi. I installed a new pump and subharness. I... |
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| 1998 Chevrolet Malibu 3.1L No Start, Poor Idle Quality VIN: 1G1ND52M4W thanks every one for all your help and ideas checked out all avenues sensors scan data etc all checked out ok narrowed it down to pcm problem car has no flareup on start up told coutomer he had to replace pcm didnot hear back from him yet-he is a licenced tech... |
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| 1998 Chevrolet Blazer 4.3L Air Mix Actuator VIN: 1GNDT13W1W Rick, thanks for your response. Your last sentence put me on track. Step 8 in Alldatas diagnostic routine for code B0416 states: "Reconnect the air mix electric actuator to a known good air mix actuator." ..."Observe the electric actuator while changing the te... |
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| 2000 Chevrolet Impala 3.4L theft VIN: 2G1WF52E8Y thanks to the fast replies install new tlmber and swtich did not have time to try the resisters but i will next time thank you Trouble codes: P1626. |
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| 2002 Chevrolet Malibu LS 3.1L ignition switch VIN: 1G1NE52J92 You guys rock! Thanks to all who responded; you were all right on the money. I tried the procedure today when I got home from work. This is what worked: I tried to start, then released key. "Theft Sysem" light was blinking; I walked away, until the light was o... |
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| 2003 Chevrolet Silverado 3500 6.6L No Start, Cuts out, dies VIN: 1GBJK33153 Sorry for the late close, but we move at the speed of Government around here. We got some good replies, such as checking rail pressure with scantool, replacing aftermarket filter element with dealer item, pressurizing fuel tank to look for leaks, and possibl... |
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| 2005 Chevrolet Silverado 1500 4.3L pass side presure system performance VIN: 1GCEC14X95 thank to every one who replied. this was a snake it bit me hard. i replaced the pps module for the second time then it would flash the led's but no codes so after retesting power & grounds and rechecking all the wires every thing keeped coming back to pps mod... |
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| 1999 GMC Yukon Denali 5.7L wipers\power windows\radio only VIN: 1GKEK13R8X Thanks for ALL the help & replies.A new BCM fixed the problem.Forgot about the need to reprogram the remote keyless entry transmitters-found out when cust picked up.Thanks again for all the fast & accurate answers.Ignition switch was not the problem in this p... |
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| 1994 Oldsmobile Cutlass Ciera 3.1L Poor Idle Quality, MIL Lamp on VIN: IG3AG55MOR Didn't get alot of replies to this one. Evidently no one else knows where this in line fuse is either. I did look in the right side kick panel but nothing there. What I ended up doing is running another wire from key side switched power to the feed (pink) wire... Trouble codes: P0321. |
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| 1995 Oldsmobile Cutlass Supreme SL 3.1L brake lights VIN: 1G3WH52M1S thank you all very much i did replace the turn signal multi function switch and problem gone all brake lights work |
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