Brake troubles

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by Time2fish, Jul 2, 2012.

  1. Time2fish

    Time2fish New Member

    I have a 2001 1500 HD. I recently had the main rear brake line blow out. I've replace it, both rear calipers, rotors, pads. The system has been thoroughly bled and there is no air in the lines. When breaking, the pedal is hard and grabs slowing the truck down but then it softens up and go almost all the way to the floor where it stiffens up again and the truck slows more. I've checked for leaks and find nothing. I'm suspecting it's the master cylinder?? Any thoughts?

  2. davedyno

    davedyno Member

    It could be the master cylinder, but on my 2002 Silverado 4X4 my brake pedal felt like mush from day I drove out of the dealer. Service Dept. said their was no air in the brake system, truck was fine. To make a long story short I got the " you know you can go to another dealer" line. Well I fix it my self, I used a Motive Brake pressure bleeder from Summit Racing. Bleeder does not cost a lot,easy to use and I flush out brake system every other year in my car and truck.

    2011 Silverado Ext. 4x4 5.3 (and it came with great brakes, great overall quality & performance)
    Z71 Appearance Pkg
    Hard Body tonneau cover

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