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Prev Professional Automotive Repair Technical Discussions for January 14, 2006
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Open Help Requests for GM
Help Request Answers
1995 Buick LeSabre Custom 3.8L Misfire VIN: 1G4HR5216S
I have an intermittent missfire at any time or speed usually under load,sometimes at idle. My helper replaced the fuel filter,spark plugs& wires.we tried new ignition module& 2 of the 3 coils.I checked the injectors screens for dirt plugging & they were clean....
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1988 Cadillac DeVille 4.5L No Start VIN: 1G6CD5159J
Have a strange one here. Vehicle was towed in last week for no start.When checking for spark vehcle started. Did further testing and no problems found. Vehicle towed in yesterday with dead battery. Recharge battery. Engine cranks/no start. When this occurs I h...
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1986 Chevrolet Corvette 5.7L Poor Idle Quality, Surge, Cuts out, Misfire, Poor Fuel Economy VIN: 1G1YY0783G
Own personnel car, restoring. Car won't idle, hesitates, backfires when throttle depressed at all timing settings, sounds very irregular. Replace ECM and Memcal. Had these codes before replacing ECM. Scan tool continues to get "Communication Mismatch" when I s... Trouble codes: 41 (incorrect prom cylinder select), 42 (esc), 43 (esc), 44 (lean)
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1997 Chevrolet Corvette 5.7L No Start VIN: 1G1YY22G4V
Hello fellow techs, Thanks in advance for any help with this problem child. Vehicle towed in after customer replaced battery with a crank no start. Fuel pressure ok, cam and crank signal good, codes P0601 and P1518 stored in history and current. Other codes in... Trouble codes: P0601 (Internal control module memory check sum), P1518 (PCM to TAC module serial data)
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1998 Chevrolet C2500 Cheyenne 5.7L tcc pwm VIN: 1GCGC29RXW
code 1860 (tcc pwm ckt ),Truck runs good , will go into lockup 0 - 10 slip, will stay engaged for miles, as soon as it comes out of lockup DTC sets , PCM won't enable lockup again untill codes cleared, Thanks in advance for your time. note : flash at another s...
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Fixes & Summaries for GM
Fix/Summary Answers
2002 Cadillac DeVille 4.6L suspension VIN: 1G6KD54Y92
Thanks to all who replied to this post, especially Chester and Edward who both said it was probably due to non OEM hubs. I had a hard time believing that until I was able to prove it to myself. I spent a lot of time (about 12 hours) on this noise. This is how ...
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1995 Chevrolet Lumina 3.1L No Start, Poor Idle Quality, Hesitation, Cuts out, Stall, MIL Lamp on VIN: 2G1WL52M9S
I still have this vehicle in the shop, and am currently opening the wiring harness to see the wire from end to end, in hopes of finding the problem. None of the other info provided has solved this one.
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1999 Pontiac Grand Prix SE 3.8L Surge VIN: 1G2WJ52K4X
Well, to make a long story short, most replies were about the tcc operation and thats exactly what the problem was. A little bit of brake pedal and it was gone. Unfortunately the customer heard 'tranny problem' and decided to buy a different vehicle later, rat...
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1995 Saturn SL2 1.9L power loss VIN: 1G8ZH1275S
sorry guys,customer has not had the problem since the last post.the replies i got all said to check coolant sensor and or connector,boyth checked ok.i did replace the temp. sender for the gauge because it was showwing hotter than it actually was.thanks for you... Trouble codes: 53 (info flagesc at retard limit), 52 (battery voltage out of range).
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