2001 GMC Sierra CODE P0300

2001 GMC SIERRA
111,000 MILES • V8 • AWD • AUTOMATIC
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BLUESMANN13
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Random multiple misfire. #2 and #6 have between 1400 and 1800 misfires. The rest of the cylinders have just a few misfires. Resent tune up, iridium plugs and high temp wires. It ran great yesterday.
Apr 26, 2010 at 5:41 PM
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RASMATAZ
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P0300 normally points to vacuum leaks and contaminated fuel
Apr 27, 2010 at 4:26 AM