2003 CHEVY AV.

  • Tiny
  • Butler211
  • 2003 Chevrolet Avalanche
  • V8
  • 4WD
  • automatic

When driving the truck can't pick up speed, rough idling, can't go past 10mpr, blowing black smoke, cuts off, check engine light is on, and misfiring. Possible cause of problem?


2003 Chevy Avalanche
5.3 Lt.

Sunday, January 9th, 2011 AT 11:06 PM

1 Answer

  • Tiny
  • rasmataz
  • Member

Check engine light on-Go to Autozone and get scanned for free

Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis, finding out what's going on.

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Sunday, January 9th, 2011 AT 11:16 PM

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