2002 Chevy Avalanche cold starting

Tiny
CRAIG22
  • MEMBER
  • 2002 CHEVROLET AVALANCHE
  • V8
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
When starting the vehicle when it is cold, the engine runs very rough to the point it is hard to keep it running, after it warms up, about 10 minutes, it runs fine.
Runs fine during the summer--no problem.
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Wednesday, December 12th, 2007 AT 2:39 PM

1 Reply

Tiny
DENNYP
  • EXPERT
If you haven't had the throttle body cleaned in a while, I recommend trying that first. Spray it out with throttle body cleaner and use an old toothbrush to scrub away any heavy deposits.
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Wednesday, December 12th, 2007 AT 6:44 PM

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