Question about 2002 GMC Yukon Denali
My 2002 Yukon Denali starts but then the engine idles up and down(as if it were jumping) till finally it idles really low and if i try to give it gas ,nothing happens and then the truck stalls. I turn the key again, it starts and the same thing occurs.
You have a leaking manifold gasket
Posted on Dec 08, 2008
Try to get a scan code . it may be the throttle sensor or a number of things.they san for free at AutoZone.
Posted on Dec 06, 2008
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Posted on Jan 02, 2017
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