1991 brake problems
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Joined: Nov 2002
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1991 brake problems
i have a 1991 f250 4x4 diesel maybe some one out there has answer to my ? ,i have a soft brake pedal and it it also slowly fades to the floor , i have had the master cly , front rotors and brake pads and shoes replaced and the system blead , if any one can help , 
Post Fiend
Joined: Nov 2004
Posts: 5,638
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From: Manitoba
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
Rebuilt master cylinders are not what they used to be.
I had one on my truck starting to fail, so I got a rebuilt master cylinder and all was well.
Started up the road with a couple tons of iron water pipe on the truck and within 30 miles the brakes were worse than the old master cylinder was.
Made it back to town and changed the master cylinder again. This one has been working for 6 months so far.
Slowly fading to the floor when you are not losing fluid is often a bad master cylinder.
I had one on my truck starting to fail, so I got a rebuilt master cylinder and all was well.
Started up the road with a couple tons of iron water pipe on the truck and within 30 miles the brakes were worse than the old master cylinder was.
Made it back to town and changed the master cylinder again. This one has been working for 6 months so far.
Slowly fading to the floor when you are not losing fluid is often a bad master cylinder.
