302Travis

I have a 2000 Mustang gt and when i brake from interstate speeds i get some vibration that gets worse with more pressure.

Sometimes after a somewhat hard braking a slight vibration will stay while driving and not using the brake for a little while then fade out.

I have noticed after parking that my right rear caliper is a decent bit hotter than the rest, but the car never pulls one way or another while braking or driving.

Any suggestions will be appreciated. I will be taking off the right rear and inspected whenever i can finally get home.

Thank you and God bless

Z28KLR

Sounds lile warped rotors.

WhiteFoxGT

warped rotors, check calipers and slides for them sticking

302Travis

I will check on both. I was thinking slides more likely to one being considerably hotter. But possibly rotors as well.

302Travis

Sorry for late reply. Turned out the right rear brake caliper was stuck in a position that just put the pad close enough to the rotor that the pad would shake side to side on it i guess. Piston wouldnt expand or contract. Completely stuck

WhiteFoxGT

you do know the rear pistons twist in... not just push like the front? glad you nailed it down...just a FYI

302Travis

Whitefoxgt, I was not aware of that. Do you mean that the piston actually more resembles like a hydraulic ball screw kinda? Or if you can describe it that would be great. But either way it would NOT budge in any way even when it was completely disconnected from the brake line

VTX1800N1

The rear pistons are dual action. Brake fluid from the service brake (your foot) forces the piston against the disc, and the parking brake cable attaches to a lever that turns a jack screw that does the same. There is a special cube disc parking brake tool that mates with the piston so that you can turn it to retract the jack screw

302Travis

Hmmm.... that may have been it! Although when i took it off and compared to the new one, the position of the e-brake spring looking attachment was in the same position as the new one... so i think the piston was just stuck? Thanks for the info! Learned something new today

VTX1800N1

It self adjusts as the pads wear, but the parking brake spring has to return to the same position. Think of it like a ratcheting action, although that's not what really happens.