Question about 2004 Ford F150

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ABS causing vibration in o4 f-150??

This problem is on a 2004 F-150 FX4 5.4 AUTOMATIC (4X4) I have noticed a vibration in the front while driving, that gets much worse when the brakes are used. I jacked the truck off the ground and romoved the front tires. I checked for a warpped rotor, not the problem. Put the truck in drive while in 4x4 and reved it up a little and stepped on the brakes.. The front rotors came to a stop in a slow jerking motion. I could feel resistance and jerking in the pedal until they stopped spinning then it finally went to the floor. I figured they would come to an instant stop, it took about 10 seconds.. the pads and rotors look ok, any ideas?? Is this an ABS problem
Thanks

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Since the rotor isn't warped. Do you have grooves in the rotor? Are the pads evenly worn? You a bad front 4X4 C/V shaft will also cause this reaction.
I would just unplug the ABS fuse and it will bypass the system to regular old-fashioned brakes.

Posted on May 23, 2009

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Posted on Jan 02, 2017

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