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06-03-2006, 06:59 PM
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Hummer Veteran
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Join Date: May 2006
Location: Ontario, Canada
Posts: 91
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idle stumble
any ideas, I had my 2003 h2 to the dealer and asked that they clean the throttle body re the idle stumble, not sure if they cleaned it correctly, any one have any simular problem, updates are complete, changed fuel filter and flushed injectors on the same dealer visit.
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06-03-2006, 08:47 PM
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Banned
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Join Date: Jan 2003
Posts: 24,247
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Re: idle stumble
are you talking about an off-idle stumble? does it hesitate or nearly go dead?
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06-04-2006, 03:52 AM
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Hummer Veteran
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Join Date: Feb 2006
Location: In a box by the lake.
Posts: 99
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Re: idle stumble
My 2006 just started to hesitate a little off a idle. I do have a Magnaflow exhaust and a Volant air cleaner. But it was doing it before I installed them. Have you found anything on yours yet?
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2006 H2, Black with bling!!
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06-04-2006, 07:42 PM
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Hummer Authority
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Join Date: Nov 2002
Location: Wherever I Go, There I Am!
Posts: 1,216
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Re: idle stumble
Mine started doing the same thing. I think it's about time for a good tune-up. Plugs, wires, fuel filter,........cats, anyway, time for the shop!  |
06-04-2006, 09:15 PM
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Hummer Veteran
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Join Date: Feb 2006
Location: In a box by the lake.
Posts: 99
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Re: idle stumble
Mine only has 4,700 miles on it and 6 months old?
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2006 H2, Black with bling!!
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06-06-2006, 03:06 AM
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Hummer Veteran
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Join Date: May 2006
Location: Ontario, Canada
Posts: 91
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Re: idle stumble
the idle has a stumble to it, it does not go near stalling. It is however driving me nuts. I have not had time to further investigate, i have been told to look at the egr? where is this located on the motor, could not see it, another was the fuel pressure regulator, If i disconect the vac line to the regulator the truck seems to run better?
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