How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Ron Your Own Question
Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 23821
Experience:  23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
Type Your Ford Question Here...
Ron is online now
A new question is answered every 9 seconds

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: 11 months ago.
Category: Ford
Expert:  A. Penland replied 11 months ago.

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