Mechanics

GMC SIERRA BRAKES PROBLEM

2002 GMC Sierra • 173,000 miles

I have a 2002 GMC Sierra 1500. The brakes do not work correctly. They make an almost grinding noise when braking and then the pedal goes to the floor. I have to pump the brakes to get the truck to stop. I have replaced the rear rotors, all four sets of pads, the brake pump module, and the brake pump and the truck still stops like $*. Should I replace the master cylinder and/or the brake booster?
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Guest
December 7, 2012.



Take it to a pro it may need bleeding there is a valve inside abs that requires 2-3 quart of fluid rrun through it an dbled properly

Hmac300
Dec 7, 2012.