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01-01-2008, 05:38 AM
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Hummer Professional
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Join Date: Jun 2007
Location: Cleveland Ohio
Posts: 315
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"Engine Power Decreasing"
One of our hummer limos today had the message center say "Engine Power reduced" twice. The car then started to lose speed, and the driver pulled over and had to turn it off then back on and it kinda reset. What would cause this kinda problem? The air filter was just cleaned this week, any ideas?
__________________
My cars:
Lamborghini Murcielago
Supercharged Viper 800 HP Special Edition #49 of 50
Porsche Boxster S
My Hummers:
08 H2, 22 in rims, 6 HID lights, 20 in TV with DVD
4 H2 limos 3 have lighted dance floors + ceilings, 1 has Zebra interior 24-26 passengers
H2 Limo 26 pass lighted dance floor (sold)
H2 Limo 24 pass (sold)
03 H2 (sold)
H1 Open top (sold)
FirstClassLimos.net - H2 limos and party buses in OH & PA
my car collection
Last edited by pteam : 01-01-2008 at 08:01 AM.
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01-01-2008, 08:28 AM
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Hummer Professional
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Join Date: Jun 2007
Location: Cleveland Ohio
Posts: 315
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Re: "Engine Power Decreasing"
I found a thread with lots of problems just like this across the whole GM line, anybody with this problem should read this http://townhall-talk.edmunds.com/direct/view/.f0e807e/0
__________________
My cars:
Lamborghini Murcielago
Supercharged Viper 800 HP Special Edition #49 of 50
Porsche Boxster S
My Hummers:
08 H2, 22 in rims, 6 HID lights, 20 in TV with DVD
4 H2 limos 3 have lighted dance floors + ceilings, 1 has Zebra interior 24-26 passengers
H2 Limo 26 pass lighted dance floor (sold)
H2 Limo 24 pass (sold)
03 H2 (sold)
H1 Open top (sold)
FirstClassLimos.net - H2 limos and party buses in OH & PA
my car collection
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01-01-2008, 11:04 AM
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Hummer Novice
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Join Date: Dec 2007
Posts: 20
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Re: "Engine Power Decreasing"
Thank you, I have been getting a check stability system light on my 03 Cadillac. I have not noticed any driving issues other than annoying info board. Did you fix your limo?
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01-01-2008, 03:31 PM
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Hummer Authority
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Join Date: May 2006
Location: South Western PA
Posts: 1,433
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Re: "Engine Power Decreasing"
never had it happen to me but I recall it happening to a buddy some time ago. said it was electrical and had something to do with the grounding of the vehicle.
__________________
2009 H2 Silver Ice LE
2008 H2 Lux Series, Slate Blue, everything but the air suspension - sold
2006 H2 Lux Series, Uplevel Chrome, DVD's, Slate Blue, Sun Roof - sold
"If Life Gives You Limes, Make Margaritas" - Jimmy Buffett
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01-01-2008, 09:33 PM
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Hummer Professional
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Join Date: Jun 2007
Location: Cleveland Ohio
Posts: 315
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Re: "Engine Power Decreasing"
Quote:
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Originally Posted by InneedofHummer
Thank you, I have been getting a check stability system light on my 03 Cadillac. I have not noticed any driving issues other than annoying info board. Did you fix your limo?
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Well everybodys off today cause of new years, I'm actually on vaca, but they'll work on it tommorrow at the shop.
__________________
My cars:
Lamborghini Murcielago
Supercharged Viper 800 HP Special Edition #49 of 50
Porsche Boxster S
My Hummers:
08 H2, 22 in rims, 6 HID lights, 20 in TV with DVD
4 H2 limos 3 have lighted dance floors + ceilings, 1 has Zebra interior 24-26 passengers
H2 Limo 26 pass lighted dance floor (sold)
H2 Limo 24 pass (sold)
03 H2 (sold)
H1 Open top (sold)
FirstClassLimos.net - H2 limos and party buses in OH & PA
my car collection
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01-08-2008, 06:04 PM
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Hummer Veteran
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Join Date: Nov 2006
Posts: 172
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Re: "Engine Power Decreasing"
check the yellow wire at the TAC motor (throttle body). Sometimes it breaks inside the insulation and if you tug on it the wire will stretch. If that's not it, get it to someone with a techII to properly diagnose it.
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01-12-2008, 12:17 AM
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Hummer Professional
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Join Date: Jun 2007
Location: Cleveland Ohio
Posts: 315
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Re: "Engine Power Decreasing"
We checked the yellow wire and it didnt appear broken or loose. We switched the throttle body wires with that of one of our other h2's and that fixed the problem. Dealer wanted $250 + $200 for install, we ordered it online for like $150 and installed it ourselves, the problem seems to be fixed now.
__________________
My cars:
Lamborghini Murcielago
Supercharged Viper 800 HP Special Edition #49 of 50
Porsche Boxster S
My Hummers:
08 H2, 22 in rims, 6 HID lights, 20 in TV with DVD
4 H2 limos 3 have lighted dance floors + ceilings, 1 has Zebra interior 24-26 passengers
H2 Limo 26 pass lighted dance floor (sold)
H2 Limo 24 pass (sold)
03 H2 (sold)
H1 Open top (sold)
FirstClassLimos.net - H2 limos and party buses in OH & PA
my car collection
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