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Prev Professional Automotive Repair Technical Discussions for January 2, 2015
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
2007 Chevrolet Impala LS 3.5L Poor Idle Quality, Surge, Cuts out, MIL Lamp on VIN: 2G1WB58K27
Hi everybody. Have this Impala for another shop. The pre cat o2 switches between .410v and .490v at idle warm.Never going closed loop. Off idle 4000 rpm switches .390v to .525v. The heater works fine and when disconnected I can use a power probe to make the sc... Trouble codes: P0134
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Fixes & Summaries for GM
Fix/Summary Answers
2004 Chevrolet Silverado 1500 4.3L Instrument cluster & radio VIN: 1GCEC14X94
Thanks members for your replies. Since I had power on the yellow wire at the BCM with connector unplugged, I thought this 4.0V was coming from some module. I found some help after searching identifix and found the problem after unplugging the wiper motor. New ...
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2009 Chevrolet Impala LTZ 3.9L Stall, Misfire, MIL Lamp on VIN: 2G1WU57M89
DAN, MATTHEW & KURT WERE ON THE RIGHT TRACK. I REMOVED SPARK PLUGS ON THE LEFT BANK & FOUND A DAMAGED SPARK PLUG & 0 COMPRESSION ON THAT CYLINDER. I REMOVED VALVE COVER & A VALVE SPRING HAD COME APART, KEEPERS & SPRING RETAINER LAYING ON THE HEAD & VALVE STUCK... Trouble codes: P0300 (Random misfire).
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