91 explorer: brakes disappear
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Cross-Country
Joined: Jan 2005
Posts: 83
Likes: 3
91 explorer: brakes disappear
My daughter's only transportation and no money for something else so this dead horse keeps getting beaten one more time.
What I've done: Rotors, Pads, Wheel cylinders, shoes, rebuilt booster, 3rd master cyl., junkyard abs module. Bled gallons of fluid.
The problem: Pedal has always been low and spongy and slow to return.
The scary part is if you hit the pedal and hold it it does ok, but back off the slightest and it goes to the floor. Hit the pedal once and Ok. Second time; nothing. Destroyed some equipment and about went through the wall getting it into the shop. New parts seem to work for awhile but then same old thing.
Thought it might be the ABS module dumping and replaced it today but same thing. Maybe this one's bad too? What if I just took it out of the circuit and spliced the two lines together?
Is this yet another bad master?
What I've done: Rotors, Pads, Wheel cylinders, shoes, rebuilt booster, 3rd master cyl., junkyard abs module. Bled gallons of fluid.
The problem: Pedal has always been low and spongy and slow to return.
The scary part is if you hit the pedal and hold it it does ok, but back off the slightest and it goes to the floor. Hit the pedal once and Ok. Second time; nothing. Destroyed some equipment and about went through the wall getting it into the shop. New parts seem to work for awhile but then same old thing.
Thought it might be the ABS module dumping and replaced it today but same thing. Maybe this one's bad too? What if I just took it out of the circuit and spliced the two lines together?
Is this yet another bad master?
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Joined: Apr 2004
Posts: 34,499
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Rubber brake lines from chassis to wheels, esp. front checked? They like to bulge and soak up pedal travel sometimes.
Calipers & mounts checked for cracks, proper install, leaks, etc?
Bad masters? Did you try different source?
ABS: Does it work when you try to lock 'em up?
Bleeding: Follow the ABS protocol?
Calipers & mounts checked for cracks, proper install, leaks, etc?
Bad masters? Did you try different source?
ABS: Does it work when you try to lock 'em up?
Bleeding: Follow the ABS protocol?
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Joined: Oct 2007
Posts: 27
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At the risk of stating the obvious, when you installed the new wheel cylinders and shoes, did you adjust them up? I had a similar problem on my '94 F250 and it was a misadjusted rear wheel. Chased it for days, thought it was adjusted, and found out the wheel cylinder assembly had come apart, causing excessive travel and taking all the braking energy.
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Cross-Country
Joined: Jan 2005
Posts: 83
Likes: 3
fixed?
Got P.O.,d and got a used master from the junkyard off of a '94 for $7.00.
Seems to have done the trick. Still somewhat spongy and that could be hoses
but it works good enough. Not thrilled about spending $1M for a rebuild, another hundred for a booster, ABS,& fluid plus a lot of time chasing it down.
Going to throw the rebuilt through their front window.
If this was my first Ford, I would be a chevy man. Been doing Fords for 46 years and this has definitely earned the name "exploder".
Thanks for the prompt and numerous replies. This is a great forum.
Seems to have done the trick. Still somewhat spongy and that could be hoses
but it works good enough. Not thrilled about spending $1M for a rebuild, another hundred for a booster, ABS,& fluid plus a lot of time chasing it down.
Going to throw the rebuilt through their front window.
If this was my first Ford, I would be a chevy man. Been doing Fords for 46 years and this has definitely earned the name "exploder".
Thanks for the prompt and numerous replies. This is a great forum.
