Question about 2003 GMC Yukon Denali

1 Answer

I have powerdowns in my 2003 Yukon Denali at various times.

I thought these powerdowns were through affter I did a tune up with plugs,wires, and injector cleaning. Various codes come up on the OBD tool that Auto zone prints out. Can it just be a software update to the master computer like one service advisor at a GMC dealer has advised me.?

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer


Posted on Jan 16, 2009


1 Suggested Answer

  • 2 Answers

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

a 6ya Mechanic 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 repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

2003 yukon denali blows room temp air at rear & nothing up front

add 134-a and see if compressor kicks on.

look around for "free AC check" at various shops.

Sorry, it can be a few different things.

Jan 27, 2013 | 2003 GMC Yukon Denali

2 Answers

Service stability message in my gmc yukon denali 2004

my 2003 is now saying this .. my mechanic said the struts are going out maybe this is your cars problem too ? just a thought but i Would go in for a free service check on that ride before something major happens on the road while your driving it

Dec 29, 2010 | 2003 GMC Yukon Denali

1 Answer

Any of you guys ever hear of someone swapping the stock engine in a 2003 GMC Yukon Denali for a Duramax/Allison? From what I hear the computer is the biggest problem? Thanks!

Yes, it's doable, but the entire engine wiring must be swapped also. Connecting it back will be a very long and tedious job, that will require a lot of time and a hefty price.

Oct 14, 2010 | 2003 GMC Yukon Denali

1 Answer

Change sparks plug wires on my 2002 yukon denaili


Jun 30, 2010 | 2002 GMC Yukon Denali

2 Answers

What kind of tune up should i get

depending on the year model.. plugs and wires distribitor cap and rotor. air filter. and defently a fuel filter. the more often you change the fuel filter the longer that high dollar 300.00$ fuel pump plus labor. will live. hope this helps.

Mar 11, 2010 | 2002 GMC Yukon Denali

2 Answers

I need to replace the wheel sensor on my 2004 Denali. Can I do it myself? How difficult is it?

if that is the problem...I thought so too, was the pump itself.....

2003 gmc sierra

it is located inside the hub, remove the calipers and the rotor, should be inside the hub, with a wire and plug comming from it...

Feb 15, 2010 | 2003 GMC Yukon Denali

1 Answer

Installing hid headlights in my 2003 denali

You can not bypass you drls. I just put a hid kit in my 97 yukon. You have to buy a wireing harness that hooks into your harness currently on your truck. The only way to shut you dlrs off is you e brake

Nov 30, 2008 | 2003 GMC Yukon Denali

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

Related Topics:

168 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts


Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides