Question about Cars & Trucks

1 Answer

Gmc yukon denali problems

Reduced engine power indicator

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    New Friend:

    An expert that has 1 follower.

    Greenhorn:

    A rookie expert who has answered 20 questions on their first day.

  • Expert
  • 72 Answers

Reduced engine power indicater is usually tripped by the ecu in response to other problems. the ecu puts everything in limp mode to allow you to move the vehicle without causing severe damage by overworking it. take it to autozone or advance and have the codes read (even if the check engine light is not on) repost with the codes and I or someone else can help you further.

Posted on Feb 08, 2014

Ad

4 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 375 Answers

SOURCE: '04 GMC Yukon Denali Check Engine Light

Did u put in fuel shortly before the light came on? I own 2 service centers & the most common situation with "Check Engine" lights are because the fuel cap wasn't re-installed or not tightened. When you refuel make sure it "clicks" when putting back on. We don't charge for a "Code Reading" but a dealer will, don't go there. Go, like the others suggested. If it is the fuel cap & you re-install it correctly, the light will go off after a short drive. Good Luck. PS-Don't panic when the "Check Engine" light comes on unless it blinks, if that happens don't drive. PSS-RE: Murray's, Auto-Zone.......If it's a "Code" (the reader will give a #) the code book will tell you the problem. PSSS-Some1 please have Troy W's Mommy & Daddy take away his keyboard. Just because you can put together a "Lego" car doesn't make you a master mechanic. You only repeated what we said except you have a "Napoleon" complex against any1 plugging something in to a vehicle. It's the same as plugging in a light @ home. In conjunction with "kinder" nine out of ten time in my experience it usually is the oxygen sensor(s) which would be about right with the year model

Posted on May 18, 2008

  • 94 Answers

SOURCE: 2005 gmc yukon xl denali service ride control

it has to do with your air ride suspension best bet is take it to the dealer there is probably a problem with a level sensor. hope this helps you

Posted on Mar 16, 2009

  • 102 Answers

SOURCE: Need color codes for radio in 2002 gmc yukon denali

2002 GMC Yukon Car Stereo Wiring Guide
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

Posted on May 24, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

REDUCED ENGINE POWER ON 2004 YUKON DENALI


throttle position sensor is prob. bad. unfortunately this mean replacing the throttle body

Dec 14, 2013 | 2006 GMC Yukon Xl Denali

1 Answer

Gmc yukon denali reduced engine power stability system disabled


I had the same problem in my Yukon Denali And after 4 throttle body's, replacing gas pedal, rewiring the grounds replacing sensors, took it to not one but two GMC dealerships who were useless they can't fix their own trucks they're not the brightest !!!! After thousands of dollars I found a mechanic very familiar with this issue you want the solution it will cost ya 500$ for me to tell ya!! Just kidding I know how frustrating this problem is okay here is the fix the problem is these electric throttle bodies are GARBAGE!!!!!!! Don't matter what u do or what u replace it will come back on unless u convert your electric throttle body to the old cable throttle the actual fix was 900$ but I spent thousands and thousands trying to fix it!!! Please save your money and tell ur mechanic u want to convert to the old cable throttle!!! Gmc is well aware of the problem but won't fix it for u cuz they're useless

Sep 24, 2012 | 2006 GMC Yukon Xl Denali

1 Answer

2007 GMC Yukon Denali engine reduced power


there are 2 conditions that will trigger this SAFE MODE that the engine is running in. The first is transmission over temperature when the sensor in the transmission senses over-temp situation it reduces engine output to no more than 1500 rpm. The second is low oil level in the engine, which will also limit engine rpm to 1500. One of those sensors is bad or the wiring for one of them is damaged. This SAFE MODE is designed to protect the engine or transmission from further damage.

Sep 09, 2012 | 2007 GMC Yukon Denali

1 Answer

2003 denali reduced engine power what is this


By saying " reduced engine power" means a whole world of things. We need details. Help us help you.

Does it studder? Stall? Does it not want to start? What?

Oct 17, 2011 | 2003 GMC Yukon Denali

2 Answers

Engine light says Reduce power


This is most likely related to one or both accelerator pedal sensors. Communication between the two is not sufficient, causing the reduced power indicator light. One or both sensors will need to be tested and/or replaced. You can check the connections at the throttle and at the top of the accelerator pedal for a loose or corroded connection.

Jan 01, 2011 | 2002 GMC Yukon Denali

1 Answer

Reduced engine power in a gmc yukon denali xl


Check all grounds, battery connections. Clean them up and tighen them. If this doens't work, inspect the throttle body for leaks.

Jul 01, 2010 | 2003 GMC Yukon XL

1 Answer

Warning stating reduce engine power and something about stability


Reduced power mode is when the electronic ignition is strategically is not firing all the cylinders to prevent catastrophic failure of your engine. The reason for the GM Engineers put the reduced power mode in the vehicle is so you can drive the vehicle under 50Mph for about 50 miles to a mechanic before the vehicle completely dies.

Jul 01, 2010 | 2003 GMC Yukon Denali

5 Answers

2003 GMC throttle position sensor


I had the same problem with my 2003 denali and came to find out that it was the battery causing the problem. the battery with sufficient power will dictate the tps. if the battery is low or bad, it won't have enough juice to allow the tps to. work. get your battery checked.

Dec 09, 2008 | 2003 GMC Yukon

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

46 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

76649 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...