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Prev Professional Automotive Repair Technical Discussions for December 28, 2009
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1998 Cadillac DeVille 4.6L No Start VIN: 1G6KD54Y8W
I have been working on this 98 deville that origanally was towed in no-start. Was a repo so no history available. It had a no crank condition with some ipc u-codes. I replaced the ipc "used" and was able to crank engine but no start due to a p1631 password inc... Trouble codes: P1631
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1996 Chevrolet C1500 5.7L No Start VIN: 1GCEC14R6T
Hello everyone, Merry Christmas. Im away from home with limited tools and ive got a problem on my hands and could really use some help. My brother pulled the motor out of his truck to replace it with a new re-built motor because of internal failure. It ran bef...
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2000 Chevrolet K2500 5.7L cracked flywheel VIN: 1GCK24U1YE
i have installed an after market flywheel and it broke in approx,30,000 mi.now i talked to someone at gm and they say their flywheel is redesigned to fix this very problem,i got the flywheel and it is different.my question is that there is a spacer in the cent...
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2001 Chevrolet Cavalier Z24 2.4L Misfire VIN: 1G1JF12T31
Car has a misfire on 1 and 4. Found it's not getting spark on those two cylinders. This engine has those silly "coils under the cover" set up so I unbolted the cover and attached four plug wires to the contacts of the coils and then to the plugs, started it an... Trouble codes: P0300 (Random Misfire)
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2002 Chevrolet Avalanche 1500 5.3L MIL Lamp on VIN: T12G361366
dealer sold me kit [...] hose is too short and bracket wrong do i reuse old bracket and cuthose and splice together with rubber thanks Trouble codes: P446
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2003 Chevrolet Silverado 1500 4.3L Starting VIN: 1GCEC14X93
This is a bare bones truck: This vehicle will not start - has P1626 for no signal from BCM when attempting to start - Have checked all fuses, power and grounds to bcm (ok) - BCM cannot communicate with Tech 2 - I have U1000 codes for all the other modules on t...
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2004 Chevrolet Trailblazer LS 4.2L no crank VIN: 1GNDT13S84
This puppy was towed in with a no crank. Turn the key and no crank, all normal lights on the cluster come on and all other system work normally. No crank signal, I can start the engine from the start relay and it runs fine. Check all the vital ign fuses and al...
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2006 Chevrolet Impala LT 3.5L Air Bags VIN: 2G1WB58K06
Came in with air bag light on. I scanned it and obtained one code: B0013 which is drivers side air bag deployment stage 2. I advised the body shop fellow to unplug and plug in ALL the air bag connectors, especially the drivers side. He claims he did this, put ...
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1995 GMC Sonoma SLE 4.3L No Start VIN: 1GTDT19W9R
94 GMC Sonoma with the V6 and "spider" injection system. Customer towed it in. Says it started stumbling and died while driving. But 1/2 hour later he started it again and drove 15 min before it died again, then it wouldn't start after that. Now it's at my sho...
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1997 GMC K1500 Sierra SLE 5.7L Cuts out, Misfire VIN: 2GTEK19R8V
this gmc truck will run fine sometimes other times it will start missing and backfire under load with no power the left bank will reg. all the missfires when you feed it fuel manualy the miss fires will clear up we have changed all the plugs cap rotor and wire...
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2004 GMC C5500 Topkick C5C042 8.1L Cuts out VIN: 1GDG5C1E24
I have a medium duty gmc 5500 truck here that has an intermittent problem. The reduced engine power light comes on and engine stalls or runs rough. checked codes found p2101 which is related to the throttle body performance. I have monitored the Tp senser alon... Trouble codes: P2101
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2004 Pontiac Grand Am SE1 3.4L No Start VIN: 1G2NF52E84
Customer called and had car towed in again, said same problem as before (2 days ago). Cranks, won't start. Towed back in. Tested as before, found no injector pulse, has spark. Changed module with known good unit (our test part) and no change. Followed all test... Trouble codes: P0107, P0645, P1107
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Fixes & Summaries for GM
Fix/Summary Answers
1993 Buick LeSabre Limited 3.8L No Start VIN: 1G4HR53L7P
Thanks for all the replies. I rechecked the injectors and they were okay. Retested all the powers and grounds. The fix was another computer. The first one was bad. I did find some scan info that just wasn't right which kept leading me back to the basic checks ...
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1978 Cadillac Seville 5.7L vents VIN: 6S69B80468
It turned out to be a bad control head on the dash. Cusatomer was a fairly old gentleman that couldnt remember if it had worked before, however the wife finally called back and said it did not. Thanks for all the input. Esp. Bob [...] for taking the time to ...
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1995 Cadillac DeVille 4.9L blower motor VIN: 1G6KD52B7S
AS SOME OF YOU SAID ENDED UP BEING BLOWER MOTOR. PLUGGED NEW MOTOR IN AND EVERYTHING WAS FINE. JUST TO LET SOME OF YOU OTHERS KNOW DID NOT HAVE CONTROL UNDER THAT COVER, COVER WAS THERE BUT NOTHING THERE WHEN REMOVED. ALSO HAD VOLTAGE ALL THE TIME ON CENTER WI...
12
2000 Chevrolet Silverado 1500 4.3L Stall VIN: 1GCEK14W4Y
yes thisone is fixed and the problem turned out to be a bad ECM we got a used ecm, a bcm, and a ignition switch, like i said the problem was the ecm. becuz it gave me no data i ordered the bcm cuz just in case, replaced ignition switch cuz it wouldn´t turn at ...
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2004 Chevrolet Silverado 2500 HD 6.6L mode door VIN: 1GCHK29224
I RECIEVED SOME REPLIES AND WHAT I DID WAS INSTALLED THE NEW MOTOR,I REMOVED THE HVAC FUSE UNDER THE HOOD REINSTALLED THE FUSE AND PUT THE KEY ON WHEN THAT HAPPENS IT RECALIBRATES THE MOTOR AND SURE ENOUGH EVERYTHING WORKS THANKS TO AL [...]
5
2004 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: 1GNDS13SX4
well i got many helpful replies, but i had to send brother packing.i'm sure the problem lies in the cam phaser or timing chain is off.but, being a honda guy i felt it was too much for me as you do need a special tool to hold the cam in place while setting it u... Trouble codes: P0016.
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1995 GMC Sonoma SLE 4.3L Excessive Emissions, Hesitation VIN: 1GTCS19WXS
Grounds under battery tray were corroded badly, cleaned grounds and drove vehicle. All is good. Thanks for the replys! Trouble codes: P0340.
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2006 GMC Sierra 2500 HD SLE 6.6L engine? VIN: 1GTHK23D26
Thanks to all that replied. We have eliminated the fan clutch, exhaust leaks and anything grounding against the body or frame. We took the vehicle to the local chevy dealer who has a vibration locator that can identify vibrations that are internal or externa...
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1999 Pontiac Grand Prix SE 3.1L blower motor VIN: 1G2WJ52XXF
Well, IATN says I recieved 11 replies but one was a duplicate so I actually got back 10. Thank you all! Had I looked at the FIX DATABASE first (like I should have) I probably wouldn't have posted a help request as there were plenty of posts in there pointing ...
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