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Ron
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
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Put new master cylinder and booster on and break pedal still

Customer Question

Put new master cylinder and booster on and break pedal still goes to the floor frequently
JA: What is the model/year of your Ford?
Customer: 2004 expedition
JA: Are you fixing your Expedition yourself? What have you tried so far?
Customer: Master cylinder and booster
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 8 months ago.
Category: Ford
Expert:  Jared D replied 8 months ago.

Hi,

After replacing the master cylinder were you able to bleed the system using a scan tool?

The ABS on this model needs to be bled using a compatible scan tool.