2002 Gmc Yukon Idles Runs Rough Initially Start Cold After Warms Runs Great

2002 GMC YUKON
150 MILES
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GSHICKS
  • MEMBER
  • 2 POSTS
My Yukon idles/runs rough when I initially start (cold), after it warms up it runs great. Shaky and rough running is only for a few minutes after starting when sitting long or cold. I heard something about cleaning or wiping out (some part?) that gets gummed up, could that be the issue? Can anyone please advie?
Thanks in advance.
Feb 9, 2013 at 11:45 AM
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GSHICKS
  • MEMBER
  • 2 POSTS
150,000 mi
Feb 9, 2013 at 11:49 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check and test the coolant temperature sensor and also clean out the idle air control valve-start here let me know
Feb 9, 2013 at 12:30 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Also go here: https://www.2carpros.com/articles/how-to-replace-an-idle-speed-control-motor-iac
Feb 9, 2013 at 1:09 PM
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