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Prev Professional Automotive Repair Technical Discussions for June 8, 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
1998 Chevrolet Prizm 1.8L Hesitation, Misfire VIN: 1Y1SK5289W
I need a hand with this car its killing me,this was brought to me with a complaint of no power.I scanned vehicle and found lean codes and misfire codes.I then checked fuel trims short term was at 20% and long term at 40% so we have a lean condition. Smoke test... Trouble codes: P0171, P0300, P0301, P0302, P0303, P0304
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2005 Chevrolet Tahoe LS 5.3L battery VIN: 1GNEC13TX5
Need some help from Chevy gurus out there; this Tahoe has an intermittent battery drain overnight. What makes it really hard to diagnose is the fact that measuring the draw; it goes down to 16 ma (which would not indicate a problem); but it looks like at some ...
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2009 Chevrolet Cobalt LT 2.2L Poor Idle Quality, Misfire VIN: 1G1AT58H79
I have a 09 Chevy Cobalt with a misfire at idle. Engine smooths out when you accelerate. O2 sensor will stay lean. Only cyl # 2 is missing. I checked for vacuum leaks but couldnt find any. I'm thinking maybe the plastic intake is cracked somewhere I cant get a... Trouble codes: P0300
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Fixes & Summaries for GM
Fix/Summary Answers
1999 Chevrolet Express 3500 5.7L No Start
I retested the spark and adjusted the spark tester to the 40kv setting and the spark wasn't present. I installed a cap and rotor and it fired right up. I let it run for a couple of hours while I finished some other cars. When the customer arrived I started to ...
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2008 GMC Sierra 2500 HD WT 6.0L ABS light VIN: 1GTHC24K28
Being that this is a company truck, it remains unfixed. I assume that there is a communication error between the PCM and the ABS control module. I do not have enough info to properly diagnose this truck. Thank you all who responded.
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