 2002 Ford Escape brake hissing noise
Hissing or vacume or air noise coming from under brake pedal, when you push the brake pedal down it stops, when you accelerate it gets louder, after taking foot off brake it will make loud air rush noise or squeak. I pushed the foam around the pedal were it goes through the floor board tighter and the rubber gromet that helped for a day or so then started again, could it be the vacume booster leaking vacume and pulling air through the gromet? | 
