Question about 2003 GMC Yukon Denali

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Why do my 2005 yukon denali make rattling noises from underneath my truck

When i start my truck i hear the rattling sound and also when i gas on it and drive it it also makes the soound the more i gas on it the worse the sound gets.

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  • GMC Master
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Check the exhaust system insulators for wear or loss as it may be metal on the support brackets.

Posted on Apr 22, 2013

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 42 Answers

SOURCE: check airbag light came on

first check the fuse for the air bag, if its good... take it to the dealership to find out what is the issue.

Posted on Jul 27, 2010

  • 2 Answers

SOURCE: Truck keeps stalling

you have a leaking manifold gasket

Posted on Dec 08, 2008

  • 566 Answers

SOURCE: 03 Yukon denali park brake warning wont turn off

hi for info the brakes warning light on dash is also an indication that brake fluid level is low? or there may be a leak resulting in fluid level drop ? also considering age of car you may need to inspect brake pads wear ? if your car has low brake pads wear indicators attached to pads ? or the hand brake switch req's checking to ensure it is being pushed to off position when h/brak is down ? so fluid level low is the obviouse 1st check as fluid will displace from reservoir as pads wear low hence the level indicator on fill cap trips on may i suggest if it is low level b4 you top up? check your b/pads if you have not done so recently? or replaced since new ? hope this helps you locate problem best wishes from the uk

Posted on Jan 03, 2009

  • 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

smarthome2
  • 1114 Answers

SOURCE: 02 yukon denali xl wont start

Did you try to replace the starter cable? is the Truck turning over or just clicking.? If it's turning over and not starting. Best guess would be one of two things. Knock sensors Located under intake manifold. they get wet and deteriorate or the fuel pump. I've replaced all three on mine. 233k still running strong...

Posted on May 24, 2009

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1 Answer

Gave a jump start and now headlights don't work on a 2005 yukon denali


sound like battery has weak or battery terminals and post need cleaning. have battery charged and checked, if battery good. alternator not charging battery. if battery over 5 years old more likely battery is bad.if battery too weak head lights wont turn on battery dead this time of year if battery old. cold weather will finish it out.

Nov 28, 2012 | 2005 GMC Yukon Xl Denali

1 Answer

I changed the steering column on my 2005 Yukon Denali and now it will start but won't stay running.


You probably interrupted the antitheft system. This link explains.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

Apr 20, 2012 | 2005 GMC Yukon Denali

2 Answers

Why do I get a rattling sound in the rear of my 2004 GMC Yukon Denali XL every time I start it?


It is the compressor to the shocks. It hapens when the shock has a leak. It's called air ride system. it's very annoying disconnect the power going to the motor behind the driver rear wheel or fix the air leak

Sep 17, 2011 | 2005 GMC Yukon Denali

1 Answer

'04 yukon denali. Gas pump shuts off at every $2.00. Excessive pressure when cap is removed to fill. Not sure if vent is clogged. Need help. Any suggestions?


Sounds like vent tube or vapor canister is plugged. Try compressed air into vent tube. If that doesn't cure, vapor canister filter is plugged.

Mar 17, 2011 | 2005 GMC Yukon Denali

1 Answer

Yesterday i ran out of gas. I filled a gas can and put gas in but the car still wouldn't start. I have a 2003 gmc yukon denali, i was told by the dealer that the fuel pump may have burnt out. any advice?


i would say the fuel pump went out also here's a easy way to find out put your head down by the gas tank have someone turn the key on if you here a buzzing sound it's good if you hear nothing well get ready to drop that gas tank.

May 05, 2010 | 2003 GMC Yukon Denali

1 Answer

My 2005 yukon denali has been making chirping/whistling noises inside the cab when driving and after ignition has been shut off. It doesnt happen all the time just here and there


Sounds like your air conditioning. If you notice it while driving, your freon charge is low. If it is noticeable only after the ignition is turned off, that is a pretty common sound.

Jun 08, 2009 | 2005 GMC Yukon Denali

2 Answers

2004 GMC Yukon Denali Awd humming sound in front of truck


The Denali's are really susceptible to front dif. wear and failure. Because it is AWD, the front dif is always working unlike a 4WD. GM, in order to lighten up the front end built the front dif in aluminum. If it was the same as the rear, it would be bullet proof, but much heavier. After about 80,000 miles it is common to have bearings failing. Remove the drain plug which happens to be magnetic. You may see more than just the normal fine filings. You will likely see larger chunks of metal some of which is not even magnetic but will drain out with the oil. You are likely looking at a $1500 rebuild. It will get much louder and run for a long time before it really goes south.

Nov 29, 2008 | 2005 GMC Yukon Denali

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