Master Cylinder
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Laughing Gas
Joined: Jan 2019
Posts: 868
Likes: 84
From: Florida
Master Cylinder
Hello,
I just noticed some staining near my left front shock area. I have a 2002 F 250 and noticed the rail was stained. When there is foreign staining it's time to investigate. Anyway I traced it up to the Master Cylinder and it looks like it's coming from the lower port on the cylinder. I called Ford and the Master Cylinder is back ordered and runs $90, not a problem. I can wait until it gets here. So for those who have replaced their Brake Cylinders, is it a difficult process. What's a good way to do it? I'm beginning to research it now. I know bleeding it and getting all the air out is critical. So any thoughts or methods would be great.
Thanks,
PJ
I just noticed some staining near my left front shock area. I have a 2002 F 250 and noticed the rail was stained. When there is foreign staining it's time to investigate. Anyway I traced it up to the Master Cylinder and it looks like it's coming from the lower port on the cylinder. I called Ford and the Master Cylinder is back ordered and runs $90, not a problem. I can wait until it gets here. So for those who have replaced their Brake Cylinders, is it a difficult process. What's a good way to do it? I'm beginning to research it now. I know bleeding it and getting all the air out is critical. So any thoughts or methods would be great.
Thanks,
PJ
Post Fiend
Joined: Nov 2001
Posts: 6,748
Likes: 118
From: Tallassee, ALabama
Replacing a MC is fairly straight forward and easy procedure. For sure bench bleed the new MC before putting it on. Undo the two nuts, the two lines, any braces and any electrical connectors is about it to remove with a PB booster.
Sometimes you can get away without needing to bleed the whole system if you pump the brakes before removing the old MC and bench bleeding the new one. You will have very little air in the lines and possible for the air to bubble back up once you install the new MC.
This is the procedure for a 2014 Super Duty with gas engine. Might give you some insight.
Sometimes you can get away without needing to bleed the whole system if you pump the brakes before removing the old MC and bench bleeding the new one. You will have very little air in the lines and possible for the air to bubble back up once you install the new MC.
This is the procedure for a 2014 Super Duty with gas engine. Might give you some insight.
Fleet Mechanic
Joined: Oct 2017
Posts: 1,704
Likes: 164
From: Southwest Ohio
You might want to check and see if the leak is coming from the sensor on the bottom of the master cylinder before springing for a new one.
It's not a difficult job but make sure you have the appropriate size LINE WRENCH (do not use an open end wrench) and bench bleed the new MC before installing it. If you do not, you will regret all of the wasted time trying to bleed the brakes.
-- Dave
It's not a difficult job but make sure you have the appropriate size LINE WRENCH (do not use an open end wrench) and bench bleed the new MC before installing it. If you do not, you will regret all of the wasted time trying to bleed the brakes.
-- Dave
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