Brakes locked up
Here is an interesting problem that has sprung up on my '83 CJ-7. The front disc brakes lock up and will not release (both sides) after running the jeep for a while. It seems that the hydraulic pressure builds up in the lines and will not release. The more you pump the brakes, the tighter the grip on the discs by the brake pads. It gets to the point where the front wheels are locked up. The calipers have been removed, inspected and put back in place. This jeep does have the power assist brakes so I'm guessing that somehow the master cylinder is not releasing the brakes due to a vaccum loss or some similar problem. Anybody with any insight here or had a similar problem and what is the solution. Thanks.