2003 Chevy Truck idle ruff

2003 CHEVROLET TRUCK
101,000 MILES • V8 • 2WD • AUTOMATIC
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GCRUSMAGNOLIA
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  • 2 POSTS
I have a 2003 cheverolet hd 2500 6.0 liter will crank was running ruff now idles smoothe when accelerating popping thru the intake (backfiring) in the intake any clues please help unemployed dad in need of help!
Jul 3, 2009 at 3:31 AM
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BRIAN 1
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  • 1,030 POSTS
any codes?any valvetrain noise?any engine noise?need to know which cylinder is missfiring.need a little more info.
Jul 3, 2009 at 6:59 AM
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GCRUSMAGNOLIA
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just received a code throttle position sensor is that the sensor on the accelerator? or is there on the intake by the air flow tube goes
thanks in advance
Jul 3, 2009 at 7:42 AM
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BRIAN 1
  • ✓Experienced Mechanic
  • 1,030 POSTS
I need to know the code to help diagnose.
Jul 3, 2009 at 8:46 AM
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