Originally Posted by S10 Racer
How many wheels does it affect? It may be a problem with the Master Cylinder or the system still has air in it.
I've seen this a few times on street rods( but Im not saying this is your problem) the last time was last summer a 32 ford street rod pulled into my shop front disc brakes just to the point of being locked up and red hot I mean glowing red and smoking!!! If I had no experience with this I would have been scratching my head!!! The actuating rod from the pedal to the master cylinder was just a little too long and wouldnt let the piston in the master cylinder come back all the way and every time he hit the brake it would build a little more pressure untill after a while the brakes would be tight. If its a booster on the car and the internal rod is not adjusted right the same thing can happen!
Its an easy check when your brakes are tight and the pedal is all the way up crack a bleeder if there is a lot of pressure this might be your problem.
A master cylinder with a sticking internal piston can cause this too!
These are only a couple of things that can cause your problem! There are more!!