why are both of my front brake calipers not working?

2001 LINCOLN NAVIGATOR
102,000 MILES
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VAL214
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  • 2 POSTS
Both of the front brake calipers are not instantly responding. at times the brakes stay in the braking position then slowly release.
Feb 3, 2012 at 5:01 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Check the master cylinder, check the proportioning valve...
Feb 3, 2012 at 5:17 PM
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VAL214
  • MEMBER
  • 2 POSTS
where are those two located?
Feb 5, 2012 at 8:48 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
The MC is on the driver's side under the hood on the firewall. The proportioning valve is below it.
Feb 5, 2012 at 12:06 PM
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