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Rough Idle At Start Up!

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Join Date: Dec 2010
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January 22nd, 2012, 2:58 PM   #1  
Rough Idle At Start Up!

I have a 2002 GMC Sierra 1500 4.8L, When I start it when its cold, it idles very rough hard to keep it running also running rich until it starts to warm up then all is good. no MIL.<!-- google_ad_section_end -->

Last edited by MDTAHOE; January 22nd, 2012 at 7:12 PM.
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