Today I was driving and I did not realize that the parking brake was partially engaged. As I was driving around I started seeing smoke coming out of both rear wheels. The wheels were extremely hot to the touch. Once I got home I cooled off the wheels and removed both wheels, rotors and brake calipers. The pads were toast. the rotors did not look bad but I am not sure. I put a set a pads on and took it for a test drive and the rims are heating up again. I do not know what is causing the rims to heat up at this time, it might be that the caliper is now sticking. I probally boiled the brake fluid in the calipers. The kicker is that this was a new set of rotors and pads. Where should I start. Any recomendation would be appreciated. This is a 2000 GMC Jimmy 4WD with Disc Brakes on all wheels.

1. Flush the brake fluid?
2. Replace the calipers?
3. Replace the rotors?
4. Replace the e-brake shoes?

 

Seeing as how the parking brake is inside the rotor, if the brake pads were worn out there is an issue with either the calipers or the flex lines.

 

The brake pads had plenty of pad but was overheated and blotchy, no longer a smooth contact surface from the heat. I believe my issue is that there is no friction material on the ebrake. I am going to replace the E- Brake Pad/Adjust and flush the brake fluid and see where it stands and I will continue from there. The more I think about it the more I think that it is the E-Brake that needs to be replaced. I did not know what was supposed to be there as far as a friction material on the E-Brake assy. I have worked mostly on rear drum brakes and not discs. When the rotors were removed I noticed that there was no friction material on the E-Brakes and did not know if that was correct. Now that I looked at my service manual I realize that all the friction material was wore off and it was making metal to metal contact with the rotor hub.

 

Well, I replaced the parking brake shoes and the calipers today and all is well. I was lucky that my brand new rotors did not warp.