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Go Back   Hummer Forums by Elcova > Hummer H3 Discussion Forums > General H3 Discussion

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  #1  
Old 03-12-2007, 10:59 PM
boomer boomer is offline
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Default post head replacment

just had my truck back about a week from head replacement and im noticing a roll in the idle when you come to a stop. it only last for a couple seconds but sometimes if idling long enough it will do the same thing again. do you think it has anything to do with new head
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Old 03-12-2007, 11:32 PM
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wannabeH3 wannabeH3 is offline
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Default Re: post head replacment

mine does that. with stock head... if im thinking the same thing you are describing
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Old 03-12-2007, 11:45 PM
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Desert Dan Desert Dan is offline
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Default Re: post head replacment

I'm not sure what a roll in idle is, but I am sure I'll be listening carefully and watching for the check engine light after mine gets fixed
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Old 03-13-2007, 03:26 AM
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Default Re: post head replacment

I had to take mine back for them to update some software. Could be that ????? Since then though they had to replace a sparkplug and a coil.
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Old 03-13-2007, 09:59 PM
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Default Re: post head replacment

Quote:
Originally Posted by wannabeH3
mine does that. with stock head... if im thinking the same thing you are describing

mine too , its still the original head it seemed to start right after i got the 35's or thats when i started to notice it . thats been over a year now .
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Old 03-13-2007, 11:15 PM
pdsq99f4 pdsq99f4 is offline
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Default Re: post head replacment

Boomer: where are you located? Any head replaced after april of 06 is the new style. I personally haven't seen any problems with the new style heads. I have seen a couple of vehicles with a slightly rough idle with no misfires though. I personally think it is due to the 600 rpm idle on a 5 cylinder engine. If the idle was even 50-75rpms more the rough idle would go away. just my two cents.
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