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Chevy Z71 Knock

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Old February 6th, 2014, 5:07 PM
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Default Chevy Z71 Knock

I have a 05 Z71 Offroad Crewcab with 113000 miles. There is a "knocking" sound coming from somewhere under the front of the truck (Its not engine noice) Its something physically and audibly knocking back and forth as I go over bumps at low speed. I can acually make it do it by slightly swerving back and forth at low speeds. I can feel it in the floor board. It seems to be worse when its cold. My Dad has a 03 GMC Sierra that seems to be making the same noise. I've checked everything I can think to check and its driving me nuts!
Old February 6th, 2014, 6:58 PM
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Are you sure you don't have a broken upper shock mount?


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