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My Yukon idles/runs rough when I initially start.

Tiny
GSHICKS
  • MEMBER
  • 2002 GMC YUKON
  • 150 MILES
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.
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Saturday, February 9th, 2013 AT 7:45 PM

3 Replies

Tiny
GSHICKS
  • MEMBER
  • 2 POSTS
150,000 mi
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Saturday, February 9th, 2013 AT 7:49 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check and test the coolant temperature sensor and also clean out the idle air control valve-start here let me know
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Saturday, February 9th, 2013 AT 8:30 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Also go here: https://www.2carpros.com/articles/how-to-replace-an-idle-speed-control-motor-iac
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Saturday, February 9th, 2013 AT 9:09 PM

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