Question about 2005 Ford Explorer Sport Trac

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Replaced all brake pads, back rotors and calipers. now brake petal is spongy yet no air in any of the lines. I was told this is a abs problem...Right or wrong and why

Posted by Norma Williams on


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john h

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Keep bleeding you still have air in system if you can positively state that all air is out than check the flex lines but rebleed

Posted on Aug 30, 2015

Testimonial: "Lines have been bleed (3 large containers) no air is coming out of lines"

  • Norma Williams
    Norma Williams Aug 30, 2015

    when bleeding...front brakes go all the way to floor (completely) but the back will not.

  • john h Aug 30, 2015

    if you changed rear calipers have someone step on brake while looking at rear pistons new dosent mean free from defects--- you may have debris in proportional valve or the flex lines are damaged (bulging)



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OK so much for that, next check the axle bearings, raise rear off the ground both sides support on jack stands and turn the axles by hand..feel binding? How about up and down play on the axle hub? If you have bad axles or C.V. joints the rotor will shake and cause the ABS sensor to try to stop the wheel from turning, so any binding or excessive play have the bearing/c.v. joints replaced.
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Here is thearticle I found in sequence for ABS systems:
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