like steve said, check the rear wheel cylinders inside the drums, also check the metal lines from the master to the proportioning valve and then to each corner of the car(well to each front and then 1 line to the back)...they have a tendency to rust and can just brake. The brake lines look like ribbed metal hoses. It can be leaking anywhere along the lines just enough to not drip, but it will drain decently fast, more when your using the brakes so it may not show while sitting or parked.
|