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I have much the same problem in a '91 F350 Diesel flatbed dually. Changed all springs, shoes, wheel cylinders on the rear. Drums where good. Installed a new booster (old one was bad) a new master cylinder and replaced the ABS block (old one had been bypassed). Power bled everything (including the proper procedure for the ABS) and still can push the pedal to the floor while running. It does hold even when the pedal is on the floor though. Still doesn't feel proper to me. I called Ford and was told this was normal for the earlier diesels, something about pressure build up and a bypass to prevent to much pressure build-up?? I still don't like it and it seems screwy to me! I asked for information based on this statement, Service Bulletins, Service Manual info that says this is normal, etc. We'll see if I ever hear back from anyone. John, any new developments? thanks! |
RV and bus conversion info since 1996.
email Joe Donnell
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