Question about 2002 Pontiac Aztek

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Knocking/thumping noise in rear end while breaking

I drive a 2003 Aztek - front wheel drive. for the past year, my rear brakes have been thumping/knocking when I brake(knock..knock..knock)I have had my brakes replaced front to back 2x, (rotors/calipers/pads front end and drums in the back end. I have had my tires balanced several times. I have had my drums machined etc etc, but still my brakes knock when I brake(mostly at low speeds) - my mechanic cannot figure out what it is, someone has suggested a ball joint - is there ball joints in the rear end? help.

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  • Mike Butler
    Mike Butler May 11, 2010

    Has he tried it on a hoist, while someone is inside pushing brakes? Take a close look at upper & lower control arms for play in bushings.

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I HAVE THE SAME PROBLEM I'VE BEEN DOING A LOT OF RESEARCH ON IT AND I THINK ITS GONNA BE THE BUSHINGS IN THE REAR KNUCKLE ASSEMBLY AND YOUR HAVE TO CHANGE THE WHOLE ASSEMBLY. I HAVEN'T TRIED IT YET BUT IF YOU CHECK BACK IN A COUPLE DAYS I WILL LET YOU KNOW

Posted on Jan 06, 2012

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Get the rear tires off the ground if you give the tire a spin and it spins and spins you dont have rear drum drag . if you spin the tire and it goes less than half way around you have drum drag adjust rear brakes

Posted on Mar 01, 2013

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Check your shock absorbers

Posted on Jul 03, 2009

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