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Prev Professional Automotive Repair Technical Discussions for September 20, 2014
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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 Chevrolet Express 3500 4.8L Misfire VIN: 1GBHG31V56
miss fire all times, mostly on cylinders 1,6,7 some times 8... on idle or accel all times, checked compression, leak down, back pressure, spark, injecters pulse, noid lights test, all normal or good, smoked intake for leaks none found, fuel trim...LT #1 25% LT... Trouble codes: P0171, P0300, P0420
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2007 Pontiac G6 2.4L Engine VIN: 1G2ZG58B37
In Auburn Hills Michigan can anyone suggest a shop that has had success with p0300 code multiple misfire code on 07 pontiac g6 2.4l. small misfire at idle.
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Fixes & Summaries for GM
Fix/Summary Answers
1998 GMC K1500 Sierra SL 5.7L Ignition VIN: 2GTEK19R8W
Itīs fixed! As I had described earlier, this truck kept cutting out due to erratic ckp signal but no cause for signal disruption was found in sensor, wiring, or reluctor. Interestingly when I scoped the MAF signal I notice a strange signal- not the usual pulsi...
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