1988 Ford F350 brake problems

151,000 MILES • V8 • 2WD • MANUAL
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BULLFROG1954
  • MEMBER
  • 1 POST
when i first got this truck the anti-lock light was on and the pedal will sink to the floor. I checked the brakes, bled them and still the same. It seems to only be the rear brakes not working properly. I changed the booster and master and re-bled. Then a friend readjusted the rears and seemed better but back to the same thing now, no rear brakes unless i pump the pedal. We also bled the anti-lock valve. So what am I forgetting or over looking?
Apr 14, 2008 at 1:52 AM
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2CARPRO JACK
  • ✓Experienced Mechanic
  • 11,533 POSTS
Sounds like the RWAL valve is internally by-passing, This will cause the pedal to sink like a bad master
Apr 14, 2008 at 3:06 AM
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