Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - Brake pedal goes to the floor sometimes
View Single Post
Old 09-10-2012, 02:08 PM   #5
sailor's Avatar
Join Date: Jun 2008
Fan#: 57268
Location: Lockport, NY
What I Drive: 2004 Pitch Black ZTS 2.3 5spd.

Posts: 27,073
Points 18,694, Level 86
Points: 18,694, Level: 86 Points: 18,694, Level: 86 Points: 18,694, Level: 86
Level Up 69% Completed
Level up: 69% Level up: 69% Level up: 69%
Forum Activity 100%
Activity: 100% Activity: 100% Activity: 100%
FF Reputation: 103 sailor Excellent Standing Member sailor Excellent Standing Member
Buy-Sell-Trade Rating: (0)
as usual, it's hard to tell exactly what's going on from a distance....

Releasing & reapplying pressure to the brake pedal is usually considered "pumping", even if only the one stroke is required - and I think you mentioned it going to the floor.....

Was your steady pressure test done with the car running, or with it shut off??

(Brake vacuum booster &/or ABS can change your feel & how the system reacts....)

For example, you can have a QUITE firm pedal with the car off - but once it's running & the booster is functioning, the pedal might not feel so good....

ABS issues COULD come into play, that's why I mentioned the leakage found at the brake cyl. as a confirmation that you actually have an issue there before pulling it apart completely & replacing the master cyl..

sailor is online now  
    Reply With Quote