2002 Chevy Avalanche cold starting

2002 CHEVROLET AVALANCHE
180,000 MILES • V8 • 2WD • AUTOMATIC
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CRAIG22
  • MEMBER
  • 1 POST
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.
Dec 12, 2007 at 6:39 AM
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DENNYP
  • ✓Experienced Mechanic
  • 1,824 POSTS
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.
Dec 12, 2007 at 10:44 AM
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