2000 Ford Explorer Intermittent fading brake pedal

Tiny
CAPTAINBART
  • MEMBER
  • 2000 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 77,000 MILES
This problem has been going on for some 18 months. The brake pedal will intermittently fade to within 1/2" of the floor before the brakes grab. Releasing and reapplying the brakes yields normal brake pedal travel and action. This happens frequently after climbing a moderate hill or spending some time at speed on the freeway. It rarely or never happens when driving around town or with frequent accelerator changes.

I have replaced the master cylinder twice, the ABS module once and the rear speed sensors once with no success.

With my limited knowledge it seems that it might be a vacuum problem but I have been assured that the power boost checks out okay, no leaks.

The last repair, the speed sensors, came from a shop which claimed to have checked with a Ford specialist who said this was not an uncommon problem with the speed sensor. My local Ford Dealer has never heard of the problem.
Do you
have the same problem?
Yes
No
Wednesday, December 16th, 2009 AT 12:09 PM

5 Replies

Tiny
BMRFIXIT
  • EXPERT
Is like when you at a very slow speed almost near stopping and the brake paddle fade and you hear a clicking and the truck stops
what I think is happening is that the ABS is being activated
most common ive seen an open ABS ring
Was this
answer
helpful?
Yes
No
Wednesday, December 16th, 2009 AT 5:09 PM
Tiny
CAPTAINBART
  • MEMBER
No. The problem only happens at speed, sometimes high speed on the freeway. And there is no sound associated with the problem, just an almost complete fade of the pedal to less than 1/2" from the floor before the brakes work. So far they have always worked.
Was this
answer
helpful?
Yes
No
Thursday, December 17th, 2009 AT 2:46 PM
Tiny
BMRFIXIT
  • EXPERT
I see
so it OK so far
do you have rear drums or rear calipers
if it happens again let me know
Was this
answer
helpful?
Yes
No
Thursday, December 17th, 2009 AT 5:06 PM
Tiny
CAPTAINBART
  • MEMBER
Sorry for the delay in responding but I was out or town.

I have 4-wheel disc brakes. And yes it happens everytime I drive the car.
Was this
answer
helpful?
Yes
No
Sunday, December 27th, 2009 AT 6:48 PM
Tiny
BMRFIXIT
  • EXPERT
Was the brake fluids flushed?
I would do so as every thing else was checked and or replaced
Was this
answer
helpful?
Yes
No
Monday, December 28th, 2009 AT 6:29 AM

Please login or register to post a reply.

Sponsored links