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Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 23001
Experience:  23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
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Replaced Brake master cylinder in 1999 F150 w/ cruise. bench

Customer Question

Replaced Brake master cylinder in 1999 F150 w/ cruise. bench bled new part/ bled brake lines at calipers. Problem: pedal is tight when engine off but pedal goes to floor while engine is on?
JA: Have you checked the fluid? How old are the brakes?
Customer: Brakes +10 years old. Fluid did run low but system has fresh fuid throughout now.
JA: Are you fixing your F150 yourself? What have you tried so far?
Customer: yers
JA: Anything else you want the mechanic to know before I connect you?
Customer: Is it possibly the brake pressure switch?
Submitted: 1 month ago.
Category: Ford
Expert:  A. Penland replied 1 month ago.

Did you have the same problem before the replacement of the master cylinder?

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