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SportTrac Discussion
Wheels, Tires & Brakes
When Braking - Pulsating/Shaking
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<blockquote data-quote="Richard L" data-source="post: 547486" data-attributes="member: 52972"><p>If you replaced the rotors, you may have the wrong rotors with the wrong tone-ring (ABS strobe) or knocked one of the ABS sensor out of alignment. The distance between the sensor and the tone ring on the rotor are critical to proper ABS operation. If the sensor is too far away or otherwise not detecting the spinning of the tone ring, the ABS system thinks that wheel is locked and skidding so it begins to pulse the brakes to prevent the wheel from locking up and skidding. It's also possible that the sensor wire or connector may have been damaged and you are not getting any signal from that sensor.</p><p></p><p></p><p></p><p>If you got the pulsing with the old rotors, and the new rotors, the sensor may have been hit by some road debris and was damaged or knocked out of alignment. Also, since the rear ABS sensor is located on top of the rear axle housing it would not easily be hit by anything, so my guess is that it's one of your front ABS sensors.</p><p></p><p></p><p></p><p>...Rich</p></blockquote><p></p>
[QUOTE="Richard L, post: 547486, member: 52972"] If you replaced the rotors, you may have the wrong rotors with the wrong tone-ring (ABS strobe) or knocked one of the ABS sensor out of alignment. The distance between the sensor and the tone ring on the rotor are critical to proper ABS operation. If the sensor is too far away or otherwise not detecting the spinning of the tone ring, the ABS system thinks that wheel is locked and skidding so it begins to pulse the brakes to prevent the wheel from locking up and skidding. It's also possible that the sensor wire or connector may have been damaged and you are not getting any signal from that sensor. If you got the pulsing with the old rotors, and the new rotors, the sensor may have been hit by some road debris and was damaged or knocked out of alignment. Also, since the rear ABS sensor is located on top of the rear axle housing it would not easily be hit by anything, so my guess is that it's one of your front ABS sensors. ...Rich [/QUOTE]
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SportTrac Discussion
Wheels, Tires & Brakes
When Braking - Pulsating/Shaking
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