Brake pedal
Lead Driver
Joined: Jun 2013
Posts: 5,667
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From: Tolland, CT
https://www.napaonline.com/en/search...der&referer=v2
FWIW, you may want to look at replacing both as a unit.
I'll add, a few years back I again replaced the booster and MC, a couple of years later, I flushed the brake fluid and the brakes finally feel some what close to OEM. TO flush the brake fluid, I bought a Motive Power Bleeder, and DOT3 from the local discount store, $8. a qt.
FWIW, you may want to look at replacing both as a unit.
I'll add, a few years back I again replaced the booster and MC, a couple of years later, I flushed the brake fluid and the brakes finally feel some what close to OEM. TO flush the brake fluid, I bought a Motive Power Bleeder, and DOT3 from the local discount store, $8. a qt.
Lead Driver
Joined: Nov 2013
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I suppose one could jury-rig something, but that would be hokey. Correct the root cause versus applying some elaborate band-aid.
It would be like breaking your leg, leaving it alone, and then buying a wheelchair as a permanent solution. I think you'd be much happier in the long run letting the bone heal.
It would be like breaking your leg, leaving it alone, and then buying a wheelchair as a permanent solution. I think you'd be much happier in the long run letting the bone heal.
Lead Driver
Joined: Apr 2002
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That would be treating the symptom instead of the cause. Have you considered a career in the medical profession? 
Lead Driver
Joined: Jun 2013
Posts: 5,667
Likes: 1,159
From: Tolland, CT
These are the trucks brakes you're talking about...not a place to cut corners and pay the cost later on...when/if the brakes fail.
Lead Driver
Joined: Apr 2002
Posts: 5,309
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So one day out driving and you hit the brakes and the pedal stayed down?
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Tuned
Joined: Aug 2019
Posts: 253
Likes: 4
Lead Driver
Joined: Apr 2002
Posts: 5,309
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This is a new to you truck so you'd better start with the wheels and work your way back to the booster.
Lead Driver
Joined: Nov 2013
Posts: 7,173
Likes: 1,173
Just thinking out loud, but would a full pressure bleed help?:
https://www.ford-trucks.com/forums/1...-bleeding.html
Even though you haven't done anything with the master cylinder yet, there's no telling what the previous owner did.
https://www.ford-trucks.com/forums/1...-bleeding.html
Even though you haven't done anything with the master cylinder yet, there's no telling what the previous owner did.
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Tuned
Joined: Aug 2019
Posts: 253
Likes: 4
the brakes work and hold fluid the truck was this man’s daily driver until mid 2020 when he passed of cancer
Lead Driver
Joined: Apr 2002
Posts: 5,309
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If you're confident in the rest of the system then run thru the diagnostic on Gary's page and assure yourself you have a properly assembled booster and master. If all checks out try swapping out another booster. Let us know how it comes out.
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Tuned
Joined: Aug 2019
Posts: 253
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just ordered a Brand new master cylinder gonna give that a try
Lead Driver
Joined: Nov 2013
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Sounds reasonable and prudent at this juncture.
Just be aware when replacing the master cylinder, you should plan on doing a pressure bleed. Same link as earlier:
https://www.ford-trucks.com/forums/1...-bleeding.html
Expect disappointment if you try to convince yourself the procedure won’t be necessary.
Just be aware when replacing the master cylinder, you should plan on doing a pressure bleed. Same link as earlier:
https://www.ford-trucks.com/forums/1...-bleeding.html
Expect disappointment if you try to convince yourself the procedure won’t be necessary.
Thread Starter
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Tuned
Joined: Aug 2019
Posts: 253
Likes: 4
Sounds reasonable and prudent at this juncture.
Just be aware when replacing the master cylinder, you should plan on doing a pressure bleed. Same link as earlier:
https://www.ford-trucks.com/forums/1...-bleeding.html
Expect disappointment if you try to convince yourself the procedure won’t be necessary.
Just be aware when replacing the master cylinder, you should plan on doing a pressure bleed. Same link as earlier:
https://www.ford-trucks.com/forums/1...-bleeding.html
Expect disappointment if you try to convince yourself the procedure won’t be necessary.
Moderator
Joined: Jan 2001
Posts: 56,983
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From: Virginia
Never had a pressure bleeder in my life, though I wouldn't mind having one. But you can bleed the brakes with a helper and have success. It's the only way I have ever done it. Several ways to get a job done sometimes and be successful in the end.
