Brakes problem
1991 Mercury Cougar V8 Two Wheel Drive Automatic
need to know reason for stiff brake pedal, requires excessive pressure as if no power assist
Tuesday, October 12th, 2010 AT 10:10 PM
1 Reply
WRENCHTECH
MECHANIC
20,761 POSTS
Shut the car off and pump the brake pedal a couple of times. Now hold pressure on the brake pedal while you start the car. If the pedal drops at least an inch when the car starts, then the assist is working, if it doesn't then it is not working.