1995 F-150 brake pedal sticks down
95 F-150 has not been driven for six months . Started up and brake pedal stays stuck in depressed position and brakes are on. BUT, You can pull up the brake pedal with foot and then brakes release. If you depress pedal again it stays down again and brakes are on. Maybe this will loosen up with more use, but any suggestions on What to check first? Fluid level is good. Thank u for your ideas. stevo
Probably have a bad booster. I would bleed the brakes and flush the old fluid out. If that doesn't help look at the brake booster. Do some reading at the link, it is for Broncos not F-150s, but it is appropriate in your situation....http://www.fullsizebronco.com/forum/7-1980-96- bronco-tech/182689-brake-pedal-stays-down.html
had the same problem with a Taurus, dealer could find nothing, so I used a LA (lower Alabama) fix and put a "return" spring under the dash on the brake pedal. It worked for years and even traded the car in for a different model after six years.
That would not be a safe repair. Pretty sure his booster is bad.
to follow up, I replaced the master cylinder and bled the brake lines. It has improved, but the brake pedal still sticks down once in a while. I think it needs much more bleeding of the lines. thanks for your comments.