Ford F800 brake pedal hsrd please help

mudjunkie

Active Member
Joined
Oct 6, 2008
Location
Henderson N.C.
I have a 95 F800 . The brake pedal is hard when u push it . When u first push brake to stop it works fine and then it gets hard and have to push with all strenghth to stop truck. I have replaced booster, master cylinder, valve with all hoses going to it on firewall, and hydraulic pump assembly. Any help would be appreciated considering i have spent 800 dollars and cant seem to find problem.
 
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