Brake Help
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Laughing Gas
Joined: Jul 2004
Posts: 769
Likes: 3
Brake Help
Hello
I got my Dads 79 F150 supercab 4x4 and it has been sitting for a couple years now. When I parked it the brakes (power Brakes) worked fine. Now they just go to the floor and do nothing. I tried bleeding them and after I did it still goes to the floor with nothing happening. Anyone have any Ideas of what I can try.
Any help appreciated
Luke
I got my Dads 79 F150 supercab 4x4 and it has been sitting for a couple years now. When I parked it the brakes (power Brakes) worked fine. Now they just go to the floor and do nothing. I tried bleeding them and after I did it still goes to the floor with nothing happening. Anyone have any Ideas of what I can try.
Any help appreciated
Luke
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 783
From: Simi Valley, CA
Hello
I got my Dads 79 F150 supercab 4x4 and it has been sitting for a couple years now. When I parked it the brakes (power Brakes) worked fine. Now they just go to the floor and do nothing. I tried bleeding them and after I did it still goes to the floor with nothing happening. Anyone have any Ideas of what I can try.
Any help appreciated
Luke
I got my Dads 79 F150 supercab 4x4 and it has been sitting for a couple years now. When I parked it the brakes (power Brakes) worked fine. Now they just go to the floor and do nothing. I tried bleeding them and after I did it still goes to the floor with nothing happening. Anyone have any Ideas of what I can try.
Any help appreciated
Luke
The master cylinder, when power brakes are present, usually leaks into the booster.
Prolly the master is bad, but when vehicles sit for years, all the rubber seals will dry out.
So, it's a good idea to replace the caliper seals and install new wheel cylinder kits.
Senior User
Joined: Nov 2006
Posts: 246
Likes: 0
From: Phoenix, AZ
Mine does the same thing. It's a 77 supercab with power brakes. I took it to my mechanic once because of real low if any brake pressure. He told me that it was the proportioning valve that was leaking. Also that I would need a new master cylinder in time. It hasn't been replaced yet and the pedal still goes down real soft. I have to pump them once or twice to build pressure when I'm slowing down
