A 2001 Ranger 2.3 liter 5 speed 173 k miles.
My parking brake cable was loose so I tried to tighten it up by driving backwards (adjust brakes and tighten cable). The bracket to remove slack did not work.
After spending much time doing quick stops in reverse, I noticed my brake pedal goes down slightly more than before. There is no lead in brake fluid reservoir. When the truck is off , I press pedal and when releasing, I hear a small squeak as brakes release from the rear brakes.
Any thoughts !