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#1
02-05-2009, 02:18 AM
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Posts: 5,485
Re: 07 runs bad when at red light
it should be in the book...
mine's lost !
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#2
02-06-2009, 12:54 AM
Hummer Authority
Join Date: Sep 2003
Location: Canada
Posts: 1,251
Re: 07 runs bad when at red light
I would check the camshaft position solenoid. If you can rotate it without removing the hold down bolt it needs to be replaced. Also if you remove it and any of the screens are missing where the oil feed holes are, again it needs to be replaced. These two problems can cause idle issues without setting codes but usually do set a code
#3
02-06-2009, 05:05 PM
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?
#4
02-08-2009, 01:44 PM
Hummer Veteran
Join Date: May 2006
Location: Argyle
Posts: 28
Re: 07 runs bad when at red light
Quote:
Originally Posted by pdsq99f4
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?
Never had the light come on. From what I read about the head, my first thought would be to change it. I am going to try and get it back in the shop next week. Buy this time I am taking it to a different shop and see what they come up with.
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2007 Lux w/adventure
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