overly sensitive front brakes

[steve53]

Hi there. I have a 1993 xl and my front brakes have all of a sudden become overly sensitive. Not that they cry easily but when I barely touch them on snow or ice, the anti-lock motor kicks in, whereas before I used to be able to apply normal pressure on the pedal without the anti lock operating. I am wondering if the master cylinder could be bad or the anti-lock assembly? I searched the frame for a proportioning valve but could find none. Does the anti-lock assembly act as a proportioning valve? Brake pedal feels normal and I have not messed around with the brakes lately. Just curious if anyone else has had the same problem and come up with a solution. Thanks.

Steve

 

[Tbars4]

...pull the front wheels and check for dirt/debris around the sensors...

 

[fordnut71]

it would be your master going.the abs is the proportioning valve.
when you change the master do a bench bleed 1st before you install it.
bleeding the abs is a major pita. just takes forever to get the air out.

 

[steve53]

Thanks for the advice. I will check out the wheel sensors. If that doesn't do it I will replace the master. Thanks.

Steve

 

[BrooklynBay]

Spraying brake cleaner over the ABS sensors, and everything else in that location should do the trick.