ABS light, "spongy" brakes and sometimes releases - Ford Powerstroke Diesel Forum
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Old 08-14-2013, 07:33 PM
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ABS light, "spongy" brakes and sometimes releases

2005 F350 6.0, new brakes all around, new slide pins for calipers.
Problem is the brakes feel soft or spongy and makes a "power steering" sound when pushing them hard. Sometimes, when coming to a stop, the brake pedal bounces a bit and it feels like it releases for a split second.
ABS light comes on intermitently, especially when going over a big bump but goes away if I turn the key off and on.

Hydroboost? ABS module? My powersteering pump needs replacing, would that cause these issues?
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Old 08-15-2013, 02:54 AM
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Could also be dirty or worn speed sensors or rings. Sometimes this happens to me but only when towing. Hopefully someone will come along with more info.
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Old 08-15-2013, 12:04 PM
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The sensor on the hubs or the rear diff?
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Old 08-16-2013, 11:01 AM
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Could be any of them. I'm not sure if it is them but doesn't hurt to check. Did you bleed all the air out of the lines and the fluid filled up to the right level? Have you rechecked to make sure it was bled out enough?
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Old 08-16-2013, 02:12 PM
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when I did the front end, I only tied the calipers out of the way, never disconnected them. Although, it probably wouldn't hurt to check just to be safe, maybe the previous owner replaced them poorly
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