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1994 GMC Safari Question: What is causing a knocking sound when I apply the brakes?



GADDANG1, Bremerton, WA, January 16, 2013, 06:05

The knocking sound only seem to be heard from under the back of my van whenever I slow down and come to a complete stop. There is no sound after I stop nor after I resume driving. Sometimes the knock is slow and and rapid. The sound is frequent.

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