Next attempt to get brakes working again?

SUNNYSUE48

MEMBER
1999 FORD F-150
5.4L
V8
2WD
AUTOMATIC
220,000 MILES

Have replaced front brakes, master cylinder, and have bleed brakes multiple times. Front passenger side wheel bearing was replaced before any other brake work was done. Have been told now to replace brake booster. Is this the next attempt to get brakes working again?

Tuesday, April 16th, 2019 AT 10:48 AM

4 Replies

SCGRANTURISMO

MECHANIC
4,897 POSTS

Hello,

It is if it is leaking or not helping to build pressure. Your vehicle's
brake system is just like a hydraulic system, and depends on brake fluid, under pressure to squeeze the calipers and apply pressure to the rotors, slowing your vehicle. The brake system must be intact with no leaks for this to happen or else the pressure in the system will bleed off. I have included a link for you to go to down below.

https://www.2carpros.com/articles/brake-pedal-goes-to-the-floor

Please go through this guide and get back to us with what you find out.

Thanks,
Alex
2CarPros

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Wednesday, March 10th, 2021 AT 11:15 AM

SUNNYSUE48

MEMBER
3 POSTS

Thank you for your time and attention. I went through the guide you sent and can see no leaks anywhere. Going to have a friend look at the back brakes. So still stumped. But I will update when the back brakes are looked at. Any other suggestions are welcomed.
If after brakes are looked at and they appear fine, I suppose it will be trip to mechanic shop again.

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Wednesday, March 10th, 2021 AT 11:15 AM

SUNNYSUE48

MEMBER
3 POSTS

Also, brake fluid reservoir is full. The brake pedal is not being hard to push, it has no resistance at all.

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Wednesday, March 10th, 2021 AT 11:15 AM

SCGRANTURISMO

MECHANIC
4,897 POSTS

Hello again,

Okay, you are sure you have bled the brakes completely? You had fluid coming out of the bleeder before you tightened it back up? I would suspect there is air in the lines. These guides can help you fix it.

https://youtu.be/w7gUsj2us0U

and

https://youtu.be/WDxvEQrMkBg

and

https://www.2carpros.com/articles/brake-pedal-goes-to-the-floor

Please run down these guides and report back.

I have included the Ford Factory Troubleshooting Guide for your vehicle's brake system in the diagrams below. Please go through the troubleshooting guide and please get back to us with what you find out, please.

Thanks,
Alex
2CarPros.

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