Question about 2003 GMC Yukon Denali

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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.?

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THE PROBLEM IS IN THE THROTTLE BODY UNIT OR WIRING HARNESS PLUG

Posted on Jan 16, 2009

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


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Oct 14, 2010 | 2003 GMC Yukon Denali

1 Answer

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Jun 30, 2010 | 2002 GMC Yukon Denali

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What kind of tune up should i get


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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.....

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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


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Nov 30, 2008 | 2003 GMC Yukon Denali

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