Question about 2005 Chevrolet TrailBlazer

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Chevy trailblazer drags when stepping on the gas makes a slight humming noise

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  • CompTech86 May 11, 2010

    have you given the truck a tune up since you had it?

  • MissouriMule May 11, 2010

    where is the humming noise coming from?

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There is a roaring noise coming from the top end of the motor on 05 chevy trailblazer. i have changed the belt & idler plulleys. what do you think it could be?

Posted on Feb 04, 2010

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Sound like possible fuel filter has some dirt in it you are suspose to change every timr you change oil or the fuel pump is over heating when you drive it try the filter first the

Posted on Jul 09, 2009

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I have a 2005 Chevy Trailblazer and it is making a loud humming noise coming from the rear end. What could that be making the noise?


ok it could be two things. it could be rear wheel bearings or a rear diff. If its a high pitch wine then its worn gears in your differential. its needs serviced or replaced. If it more of a rumbling or grinding hum, coming only from one side or both) then there are bad wheel bearings.

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2002 trailblazer making loud humming noise when driving


When you turn right - you're taking weight off the right wheel.
If the noise dissipates - the passenger side wheel bearing is most likely to blame.

Thanks

Jan 06, 2010 | 2002 Chevrolet TrailBlazer

1 Answer

I changed the serpentine belt and now there is a humming noise


If you've double checked to make sure belt on properly, you'll have to identify which wheel (pulley) is making noise and check it for any debris that may have built up on it, or possibility of bearing failure in that part. Was it not noticeable with old belt, or was old belt pretty noisy, and that's why it was changed?

Mar 07, 2009 | 2002 Chevrolet TrailBlazer

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