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Brakes Fade, Low Pedal On 1998 Explorer
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cycleman54
Novice
Mar 21, 2010, 11:26 AM
Post #1 of 2
(2782 views)
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Brakes Fade, Low Pedal On 1998 Explorer
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I'm having trouble with brake fade on a 1998 Explorer 4WD,4wh Disc Brakes, with three-channel ABS. At slower speed, stop and go braking, the pedal is high and firm. After driving a short distance at freeway speed, the vehicle acts like only one axle is braking and the pedal goes almost to the floor. The brake pads were all replaced and all rotors resurfaced. A brake fluid exchange was also done. Vehicle has 171,000 miles with original Master Cylinder.
Brakes have been bled several times (gravity and vacuum bleed) until nothing but clean, clear brake fluid comes out of bleeder screws. I have tried cracking the brake line fittings at the M/C and the EHCU. Didn't get any air out of those. While stationary on the lift, all four wheels lock tight when brake pedal is depressed. I've run out of ideas to try to solve this problem. Has anyone had a similar challenge or know of anything else I could try? Cycleman55
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way2old
Veteran
/ Moderator
Mar 21, 2010, 2:14 PM
Post #2 of 2
(2778 views)
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Re: Brakes Fade, Low Pedal On 1998 Explorer
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Are you sure the brake pedal is dropping to the floor or close? Or is it just getting hard and it feels like it is dropping to the floor? Brake fade is caused by heat and it creates a glaze on the pad and rotor and the brakes just slide over the rotor. The brake pads do not "give" as designed and therefore the pedal stays high. If the pedal is dropping, isolate the Master Cylinder to see if it is by-passing internally.
Being way2old is why I need help from younger minds
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