rwelli1001
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Junior User
Joined: Aug 2011
Posts: 67
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From: Las Vegas Nevada
rwelli1001
94 F250 XLT 4X4 7.3L Turbo Diesel. 5 speed Stick.<O
</O
Having brake issues.<O</O
<O</O
Vacuum pump was bad, replaced it.<O</O
Fluid was bad so replaced Master cylinder, Rear wheel cylinders, Front caliper seals and Boots. Clean system.<O</O
<O</O
Peddle is not holding. Peddle bleeds down, pump it up gets great peddle, but then when it sits for a few minutes I have to pump it back up. <O</O
Peddle feels better when engine is off than when on.
¾” free play in peddle.
Where do I look now or do now.
PS<O</O
Just how does a proportioning valve work?<O</O
And what are the symptoms of a bad one?
</OHaving brake issues.<O
</O<O
</OVacuum pump was bad, replaced it.<O
</OFluid was bad so replaced Master cylinder, Rear wheel cylinders, Front caliper seals and Boots. Clean system.<O
</O<O
</OPeddle is not holding. Peddle bleeds down, pump it up gets great peddle, but then when it sits for a few minutes I have to pump it back up. <O
</OPeddle feels better when engine is off than when on.
¾” free play in peddle.
Where do I look now or do now.
PS<O
</OJust how does a proportioning valve work?<O
</OAnd what are the symptoms of a bad one?
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