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07 runs bad when at red light
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02-06-2009, 05:05 PM
pdsq99f4
Hummer Veteran
Join Date: Nov 2006
Posts: 172
Re: 07 runs bad when at red light
If it only runs rough at idle after it warms up it probably is going to need a head. Even a few 07's have had bad heads. Not nearly as bad as early 06's though. Has your check engine light came on?
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