Spongy Brakes
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Laughing Gas
Joined: Sep 2007
Posts: 869
Likes: 5
From: Near Shenandoah Valley
Spongy Brakes
I believe I had an earlier thread on this issue but thought best to start over.
1995 F350 Crewcab, 8' bed. 7.3 Powerstroke, a/t
Truck failed vehicle inspection some time back, ABS and Brake light on. Replaced front calipers, pads, hoses, all lines and fittings. Replaced master cylinder and checked out the contacts on parking brake.
Lights still on, pedal spongy. I am using an older Blue Point pressure bleeder.
Truck sat for a while, I really need it. Instead of just buying and changing parts, I removed the ABS valve off frame under drivers area and and replaced off a parts truck. The pedal is better, still not good. Truck has almost no brakes going backward on a slight grade.
is it possible the master cylinder is also not a very good one?
Not sure where to start looking.
1995 F350 Crewcab, 8' bed. 7.3 Powerstroke, a/t
Truck failed vehicle inspection some time back, ABS and Brake light on. Replaced front calipers, pads, hoses, all lines and fittings. Replaced master cylinder and checked out the contacts on parking brake.
Lights still on, pedal spongy. I am using an older Blue Point pressure bleeder.
Truck sat for a while, I really need it. Instead of just buying and changing parts, I removed the ABS valve off frame under drivers area and and replaced off a parts truck. The pedal is better, still not good. Truck has almost no brakes going backward on a slight grade.
is it possible the master cylinder is also not a very good one?
Not sure where to start looking.
Posting Guru
Joined: Jun 2002
Posts: 1,203
Likes: 2
From: where the deer and antelo
Did you do anything with the rear brakes? Out of adjustment could be part of your problem.
I had been battling brake problems for as long as I've owned my truck. I could adjust them and they would be better for a while but over time begin to fade. Last year I ordered all new hardware and had the parts sitting in the garage ever since. The past few days I noticed having to press harder and harder to get the truck to stop so I decided to tackle the job. 12 hours and several trips to the parts store later I have better brakes than I've had for 18 years. I had a leaking wheel seal that wasn't helping anything, and who ever last installed brakes had them in wrong. The primary and secondary shoes were swapped on each side and the adjustor in the drivers side was installed backwards so it loosened the brakes instead of tightening them.
I had been battling brake problems for as long as I've owned my truck. I could adjust them and they would be better for a while but over time begin to fade. Last year I ordered all new hardware and had the parts sitting in the garage ever since. The past few days I noticed having to press harder and harder to get the truck to stop so I decided to tackle the job. 12 hours and several trips to the parts store later I have better brakes than I've had for 18 years. I had a leaking wheel seal that wasn't helping anything, and who ever last installed brakes had them in wrong. The primary and secondary shoes were swapped on each side and the adjustor in the drivers side was installed backwards so it loosened the brakes instead of tightening them.
Thread Starter
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Laughing Gas
Joined: Sep 2007
Posts: 869
Likes: 5
From: Near Shenandoah Valley
Well, since my last post I changed the master cyl and adjusted up the rear brakes, lots of bleeding.
I have better brakes but not real good ones. Perhaps I should pull the rear wheels but I haven't had the time yet.
I have better brakes but not real good ones. Perhaps I should pull the rear wheels but I haven't had the time yet.
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