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Prev Professional Automotive Repair Technical Discussions for December 16, 2013
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
2006 Cadillac CTS 3.6L Misfire VIN: 1G6DP57756
I am not familiar with this engine. Live data on scan tool shows miss's in cylinders #1 & #2 but primarily in #1. History shows miss in cylinders #1, #2, #3 & #4. Miss seems to be constant both at idle and while driving. Oil is about a quart high & dark. Coola... Trouble codes: P0300 (Misfire detected), P0301 (Misfire detected cyl 1), P0302 (Misfire detected cyl 2), P0128 (Coolant Temp below thermostat regulating temp), P0303 (Misfire detected cyl 3), P0304 (Misfire detected cyl 4)
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1994 Chevrolet Blazer 5.7L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GNEK18K6R
truck came in in tow truck, from another shop, talked to customer and he stated took truck to chevy dealer, told him that need it to start with complete tune up, customer declined because dealer will not promise that tune up will take care of problem, i notice... Trouble codes: 33 (map sensor vaccum too high), 44 (lean)
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2005 Chevrolet Silverado 1500 5.3L Poor Idle Quality, Misfire VIN: 2GCEC19T65
Truck came in with a rough idle complaint, CEL on. Started after setting in about 20-30 degree weather for 2 days and has been present since that time. Checked codes and data, had P0300. Checked miss history, had misfire counts on cyls 1,3,5&7, cyl 1 had the h... Trouble codes: P0300
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Fixes & Summaries for GM
Fix/Summary Answers
2001 Chevrolet Silverado 2500 HD 6.6L cruise control VIN: 1GCHK23181
Thanks for the replies-told cust the next time he tows trailer to leave harness unplugged to see if trailer is causing problem.Thanks again Mark
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2005 Chevrolet Silverado 3500 6.0L Mechanical VIN: 1GBJC39U75
Yes, the fix is it. Thanks for everyone's input on this. Flushing the system fixed this problem. The p/s fluid appears found, but check with metallic, found some fine metals. Took a chance with flushing it prior to any parts replacement. TO my surprise it to...
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2006 GMC Sierra 2500 HD SLT 6.6L MIL Lamp on VIN: 1GTHK23D56
THANK TO ALL THAT REPLIED . YOU ALL WERE SPOT ON. HAD TO TAKE TO DEALER BECAUSE I DON'T OWN A TECH 2 NOR COULD I GET MY J2534 DEVICE TO PROPERLY EMULATE WITH GM'S [...]. I WANDER IF ANYONE KNOWS OF A SCAN TOOL THAT WOULD PERFORM THIS. MY AUTEL MAXIDAS NOR M... Trouble codes: P0268.
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2000 Oldsmobile Bravada 4.3L fuel gauge.alt. light, temp gauge,security light VIN: 1GHDT13W0Y
The pcm was at fault bad internal contacts. thanks for all your help.
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