Sooner

I washed the car a couple of weeks ago & put it away without my usual quick drive to dry out the brakes. As a result the pads rusted to the rotors & the car sat for about a week. This has happened before & it's never been an issue.

This time however, it took a bit more force to drive away &"break" the pads free. Now I have a vibration under braking. I have tried several med to high speed stops, dragging the brakes, etc... to smooth things out, but nothing is helping.

Any ideas? These are fresh pads with only about 300 street miles & 1 DE on them.

Pickled Piper

Try several hard stops from 60mph. Brake as hard as you can without inducing the ABS, don't let the car come to a complete stop. Accelerate and repeat. If this doesn't cure it have a good look at the inside faces of the discs. My car had similar symptoms and I found large chunks of the disc (rotor) had actually broken of.

Good luck.

pp

Terry Adams

You may have brake dust caked in the rotor holes. Take your car to a DIY car wash and run the high pressure sprayer close up at all the holes. Roll the car forward a quarter turn and blast the holes hidden by the caliper. If that does not work, you may have uneven pad deposit on the rotors from the new pads.

Sooner

Thanks..I tried that. Guess I need to pull the wheels & take a look. Your rotors had chunked? never heard of that happening.

Terry Adams

It happened to me just after I had new rotors and pads installed. I think the shop did not bed them in, so the first hard stop I did led to uneven pad deposit. Once that happened, no amount of bedding in or brake dragging I did at the beginning of a 4K mile trip did any good. When I got back, the shop lightly sanded the rotors and all was well again.

Cactus

Mine always does this after a wash and inactivity. Goes away after a couple of hard stops.

Black993

mine are usually harder to break free after a wash than any other car I've had. I usually dont let the car sit a week after a wash (drive it....make it dirty again!!) so I've never experienced it to that effect.