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Go Back   Hummer Forums by Elcova > Hummer H3 Discussion Forums > Technical Discussion and Customizing your H3

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Old 07-19-2006, 05:17 PM
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Default Re: wheelin today and a couple of issues

Quote:
Originally Posted by f5fstop
You have an interesting PM that includes some information .
Again, if you want to show them the write up to the dealer, feel free, just remove any identification of who sent it.

Thank you. I just called the service dept. They drove it last night and couldn't duplicate the problem. no $hit!

So I told him word for word what "my source" had said. I also answered one of the two questions. Reduced engine powere was present until the egine was turned on and off. I'm getting you the other info as well.
Thank you.
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Old 07-19-2006, 05:56 PM
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Default Re: wheelin today and a couple of issues

Just had a another reply from powertrain programming engineer, and she states the P0121 is the code to go after.
When the PCM detects a condition within the throttle actuator control (TAC) system, other DTCs may set due to the many redundant tests run continuously on this system. Locating and repairing one individual condition may correct more than one DTC. Keep this in mind when reviewing captured DTC info.

She is also leaning toward a TP sensor, but could be a MAP sensor. She also states that it could have been what I suggested, "a brain fart," that may never happen again. Just a scenario where the inputs got slightly messed up for a second or two, and the PCM could not relate all the inputs. Restarting the engine cycled all back to normal, and the PCM shook it off and went back to normal mode.
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Old 07-19-2006, 06:16 PM
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Default Re: wheelin today and a couple of issues

Quote:
Originally Posted by timgco
Thank you. I just called the service dept. They drove it last night and couldn't duplicate the problem. no $hit!

So I told him word for word what "my source" had said. I also answered one of the two questions. Reduced engine powere was present until the egine was turned on and off. I'm getting you the other info as well.
Thank you.

Where did you take it to? I want to know if I should avoid the Medved (Wheatridge) service dept the way I avoid their sales dept.
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