Mechanics

GMC YUKON COOLANT PROBLEM

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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Gshicks
February 9, 2013.




150,000 mi

Tiny
Gshicks
Feb 9, 2013.
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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Tiny
Rasmataz
Feb 9, 2013.

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