Question about 2003 GMC Yukon Denali

1 Answer

Reduced engine comes on although resets when engine is shut off and restarted

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that got 5 achievements.

    Greenhorn:

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

    Cheetah:

    An expert who has answered 20 or more questions within one hour.

  • Contributor
  • 34 Answers

Either throttle body, throttle actuator control module or least likely the gas pedal. start by checking the wires and connector at the throttle body

Posted on Feb 18, 2014

Ad

1 Suggested Answer

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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Reduce engine power intermittent


Run a diagnostic test to see what codes come up and go from there.

Oct 04, 2014 | 2002 GMC Envoy

1 Answer

Throttle position sensor problems


reduced engine power has to do with the electronic throttle control or drive by wire . All electronic wires under the dash on the gas pedal , electric motor on the throttle body . DTC'S - diagnostic trouble codes stored in the computer . Take it to the dealer .

Mar 04, 2017 | 2002 Chevrolet TrailBlazer

1 Answer

My 2009 gmc Acadia fan was running a lot more lately after shut off and then last night it said shut car off and when restarted was in reduced power mode when I checked coolant it was almost non existent...


A very common issue on the 3.6 liter V6 engine in the acadia is a leaky water pump. The pump starts leaking, causing a low coolant level, causing the engine to go into reduced engine power mode to keep the engine from overheating. This usually results in a very extensive cylinder head gasket repair job. You should have a local shop perform a cooling system leak check to find the leak for sure, and an engine block check to see if the overheat condition caused internal engine damage.

Aug 02, 2013 | 2009 GMC Acadia

1 Answer

Check engine light comes on and says reduced engine power,vehicle does lose power then shut off,restart and is fine for awhile


Your check engine light is on because the computer detected a problem. Take it to Autozone and they will scan it for free. They will let you know what is wrong and what you will need for parts. Other part stores offer the same service. Thank you very much for choosing FixYa.

Feb 10, 2011 | 2005 Chevrolet Uplander

3 Answers

What does reduced power mean on a 2005 chevy colorado


why does the reduced power light come on , then the truck stalls. If you pull over and shut down the engine and wait a 30 secounds the truck will restart and run fine until the next time you start the truck. The truck has 48k miles

Aug 07, 2010 | 2005 Chevrolet Colorado

1 Answer

Reduced engine power silverado 2006.Engine light came on.Stopped vehicule shut off engine and restarted.engine light stayed on and had lots of power.


You need to have the computer scanned for trouble codes. Whatever happened stopped after you restarted the engine, but the engine light wont go off until the ignition cycles many times without any problems. Any parts store will scan your truck for free. Have them scan it and clear the codes, and come back here and let us know what code/s you get.

May 16, 2010 | 2006 Chevrolet Silverado

1 Answer

Reduce power light comes on and engine shuts down


Your engine has reached it service period. You will need have it serviced, change engine timing belt, point plugs oil etc. snd then have the brain reset using a diagnostic tool!

Feb 27, 2010 | 2002 Honda Passport

1 Answer

Reduce engine light comes on with a/c use.


Most likely it is the fan clutch as it is computer controlled. I have had 2 in the shop this year with the same problem. To be sure, have someone check the codes before you start spending your hard earned dollars.

Aug 31, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

Reduced engine power


hi there my name is don i will try to help you on this
when your reduced engine light comes on that means there is a active fault code in one of the sensors that is cusing this
you will have to get it scanned or retreive the codes from the dash

once you shut it off and turn it back on it temporarly resets until the diagnostics go through it again and it will reduce the power to the engine
it could be something simple like a gas cap or tire pressure but you will have to get it scanned to find out
thanks
don

Aug 10, 2009 | 2004 Chevrolet Silverado 1500 Crew Cab

Not finding what you are looking for?
2003 GMC Yukon Denali Logo

95 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts

yadayada
yadayada

Level 3 Expert

76109 Answers

Freddy

Level 3 Expert

1311 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

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

Answer questions

Manuals & User Guides

Loading...