Hummer Forums by Elcova  
Forums - Home
Source Decals

Source Motors
Custom. Accessories.

H2 Accessories
H3 Accessories
Other Vehicles

H2 Source

H2 Member Photos
H2 Owners Map
H2 Classifieds
H2 Photo Gallery
SUT Photo Gallery
H2 Details

H2 Club

Chapters
Application

H3 Source

H3 Member Photos
H3 Classifieds
H3 Photo Gallery
H3 Owners Map
H3 Details
H3T Concept

H1 Source

H1 Member Photos
H1 Classifieds
H1 Photo Gallery
H1 Details

General Info

Hummer Dealers
Contact
Advertise

Sponsored Ads










 


Source Motors - custom. accessories.


Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > General H2 Discussion

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 01-01-2008, 05:38 AM
pteam's Avatar
pteam pteam is offline
Hummer Professional
 
Join Date: Jun 2007
Location: Cleveland Ohio
Posts: 315
pteam is on a distinguished road
Default "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.
Reply With Quote
  #2  
Old 01-01-2008, 08:28 AM
pteam's Avatar
pteam pteam is offline
Hummer Professional
 
Join Date: Jun 2007
Location: Cleveland Ohio
Posts: 315
pteam is on a distinguished road
Default 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
Reply With Quote
  #3  
Old 01-01-2008, 11:04 AM
InneedofHummer InneedofHummer is offline
Hummer Novice
 
Join Date: Dec 2007
Posts: 20
InneedofHummer is on a distinguished road
Default 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?
Reply With Quote
  #4  
Old 01-01-2008, 03:31 PM
mikejr's Avatar
mikejr mikejr is offline
Hummer Authority
 
Join Date: May 2006
Location: South Western PA
Posts: 1,433
mikejr is an unknown quantity at this point
Default 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
Reply With Quote
  #5  
Old 01-01-2008, 09:33 PM
pteam's Avatar
pteam pteam is offline
Hummer Professional
 
Join Date: Jun 2007
Location: Cleveland Ohio
Posts: 315
pteam is on a distinguished road
Default Re: "Engine Power Decreasing"

Quote:
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?

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
Reply With Quote
  #6  
Old 01-08-2008, 06:04 PM
pdsq99f4 pdsq99f4 is offline
Hummer Veteran
 
Join Date: Nov 2006
Posts: 172
pdsq99f4 is on a distinguished road
Default 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.
Reply With Quote
  #7  
Old 01-12-2008, 12:17 AM
pteam's Avatar
pteam pteam is offline
Hummer Professional
 
Join Date: Jun 2007
Location: Cleveland Ohio
Posts: 315
pteam is on a distinguished road
Default 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
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT +1. The time now is 10:56 AM.


Powered by vBulletin Version 3.0.7
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.