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01’ - Intermittent spongy brake problem

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Old Jun 8, 2012 | 09:24 AM
  #1  
michaelleih's Avatar
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Default 01’ - Intermittent spongy brake problem

I have a 2001 explorer sport/trac and I just replaced the front pads and rotors. After replacing the pads and rotors, I bled the brakes and replaced brake fluid. Now I am experiencing an intermittent brake problem. Most of the time, the brakes work just fine, but about every 1 in 20 times I experience a spongy brake pedal just as I am stopping the vehicle. The situation is like this. I will press the brake and truck will stop as normal, but just as the vehicle is stopping, the brake pedal will vibrate a little and drop to about half way to the floor. The truck still stops and taking my foot off the brake and re-pressing it, seems to fix the problem. I have read that the problem can be the master cylinder or it could be an ABS sensor problem. Does anyone have an idea or test to help isolate the problem?
 
Old Jun 8, 2012 | 05:51 PM
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A good place to start would be to have the brake system bled with the use of a scan tool that can operate the solenoids in the ABS system.
 
Old Jun 9, 2012 | 07:02 PM
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Thanks for the advice. Do you know if a place will lend the proper scan tool or is the dealer the only option to bleed the brakes using a scan tool?
 
Old Jun 9, 2012 | 07:25 PM
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Any good shop/garage will probably have the scan tool.
 
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