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Prev Professional Automotive Repair Technical Discussions for February 16, 2015
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Open Help Requests for GM
Help Request Answers
2008 Cadillac DTS 4.6L MIL Lamp on VIN: 1G6KD57Y68
Have not found much diagnostic information on this code. Checked EGR for being partially stuck open but could blow from exhaust side and pintle sealing tightly/no air. Trouble codes: P1400 (Cold start emission reduction control system)
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2002 Chevrolet Astro 4.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GCDM19X62
Ok so this thing has a dead missfire on cylinder 4 at idle according to my scanner. You can watch the missfire counter for #4 run up like its not firing at all. I've replaced the #4 injector, swapped plugs and wires, checked compression( which is about 130 on ... Trouble codes: P0300 (random miss fire), P0304 (cylinder 4 miss fire)
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2004 Chevrolet Silverado 1500 4.8L MIL Lamp on, Low Engine Temp VIN: 1GCEC14VX4
This vehicle came to us after another shop had essentially given up fighting this repeat P0128 Failure. The other shop had supposedly replaced the thermostat multiple times as well as replaced the ECT Sensor. We first verified that the engine did take a long t... Trouble codes: P0128
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2002 GMC Sonoma SL 4.3L No day time running lights or lowbeam VIN: 1GTCT19WX2
I have this Gmc Sonoma in My bay,with no day time running lights or low beam.There is the w/zr2(which I believe is what I have)However the wiring diagram for the w/zr2 shows the day time running lights relay taped to the bodyhardness near breakout for rear was...
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2002 Pontiac Firebird Formula 5.7L MIL Lamp on VIN: 2G2FV22GS2
repaired 5 volt ref to ftp sen and now its seting a vent code of po446 .idroped the gas tank to check the vent valve .the vent valve is good the tank pressure is -11.2 vac. and volts 3.8 the tank is out of the car no vapor lines hooked up and still the same .n... Trouble codes: P0446
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Fixes & Summaries for GM
Fix/Summary Answers
2003 Chevrolet Venture LT 3.4L No Start VIN: 1GNDX13E53
TOOK ADVICE OF MORE THAN ONE RESPONDENT.WE REPLACE THE FRONT CRANK SENSOR WITH OEM PART. PROBLEM WENT AWAY. Trouble codes: P0336.
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2003 Chevrolet Tracker 2.0L temp guage VIN: 2CNBJ18C93
thank you every one who helped me nail this problem, including Michael [...], It turned out to be a broken wire in the harness, I sliced an additional wire and now we are golden. I was confused on how the circuit work...
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2012 Chevrolet Cruze LT 1.4L Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: 1G1PF5SC8C
Thanks for the help guys. Originally when i was testing fuel pressure and volume i had taken a fuel sample in a clear bottle and it looked pretty good to me, no seperation or anything. Friday after i smoked the exhaust for leaks and the intake system for leaks... Trouble codes: P0171 (Fuel trim system lean), P2097 (Post catalyst fuel trim system high limit).
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2004 Saturn Vue 3.5L Alternator VIN: 5GZCZ53424
Replaced the Alternator for the Third time. So Far So Good. Thanks For The Replies.
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