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Old 12-27-2008, 03:12 AM   #1
rosskie
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wierd noise from rear tire area


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Hey everyone,
New to the forum and already have found some great info. I do have a question that I couldn't find the answer to though. Usually when I start the truck, I can hear a noise that sounds like a small air compressor from under the rear end behind the wheels. Any thoughts or ideas? I just bought the truck and it does not have an owners manual. Also have a tire pressure sensor warning on the display. Are they related and is there an easy way to make this go away. Oh, I have a 2006 yukon denali. I love it so far. Thanks for any help I can get.
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Old 12-27-2008, 06:19 PM   #2
metro273
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My guess is that you are probably hearing the fuel pump, at the rear of the vehicle?
No, it's not related to the tire pressure light being on.
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Old 12-27-2008, 06:43 PM   #3
02cadiHOE
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it could be the rear air ride system on the denali.
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Old 12-28-2008, 11:58 AM   #4
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Not sure on the Denali, but on most late model GM's, when you turn the key "ON" you"ll hear the fuel pump pressure up for about 2 seconds, then it shuts off until you start the engine.
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Old 12-28-2008, 10:46 PM   #5
rosskie
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Default Thanks for the info

I don't believe it is the fuel pump. The noise starts after the truck is started and only runs for about a minute or so. It is way louder than a fuel pump noise. Probably air ride. I am not sure if my truck has it or if it comes standard. Thanks for the info. I will do more research.
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Old 12-29-2008, 01:11 AM   #6
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its the air ride suspension i got the 03 denali and yo can see the compressor from the drivers side rear tire well
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Old 12-30-2008, 02:20 AM   #7
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I was wondering what that noise was..
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