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2003 Chevy Truck idle ruff

Tiny
GCRUSMAGNOLIA
  • MEMBER
  • 2003 CHEVROLET TRUCK
  • V8
  • 2WD
  • AUTOMATIC
  • 101,000 MILES
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!
Friday, July 3rd, 2009 AT 10:31 AM

3 Replies

Tiny
BRIAN 1
  • MECHANIC
  • 1,030 POSTS
Any codes?Any valvetrain noise?Any engine noise?Need to know which cylinder is missfiring. Need a little more info.
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Friday, July 3rd, 2009 AT 1:59 PM
Tiny
GCRUSMAGNOLIA
  • MEMBER
  • 2 POSTS
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
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Friday, July 3rd, 2009 AT 2:42 PM
Tiny
BRIAN 1
  • MECHANIC
  • 1,030 POSTS
I need to know the code to help diagnose.
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Friday, July 3rd, 2009 AT 3:46 PM

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