ive been having this problem where my front brakes lock up after driving it for it a while... seems to be a issue with heat (i think) beacause if you let the car cool down the brakes release and im able to drive again...ive been trying to figure out what the problem might be and this what i came up with....maybe the pads are sticking and after a while of driving they heat up causing the fluid to expand causing the brakes to lock up... i will check the pads ..btw i do know the master cyclinder was replaced prior to me purchasing the car...and i know there is an adjustment screw on the servo unit...not sure where that screw should be set.... any help would be appreciated

 

I would say you have a bad caliper or brake hose.

 

Bad calipers.

 

What are you talking about????

 

if you remove the master cylinder (two nuts)...behind that theres a push rod that pushes agaisnt the master cylinder when you apply the brakes...it has a adjustment screw on the tip

 

OK seems i got the problem fixed... first thing i did was checked the brake calipers to make sure they were not sticking then i replaced the master cylinder the one it had before looked pretty generic...i guess the guy who replaced it before me chose the cheapest one he could find.... and i bled the system ...no more locking brakes