ABS braking My 1999 F150 ext cab 4x4 5.4 with 4 disc brakes has a spongy brake with a clicking feel in the brake pedal--the ABS goes light off and on--I have had all 4 pads replaced--the front rotors turned and replaced the 2 front calipers and bled brakes and still have a really bad spongy brake with that clicking or vibrating feel in the pedal---do you have any ideas? Thank you Dale

Have you check? the master cylinder. sometine when you get the rotors cut they dont come out right because they may be warped or to thin. if you did the job yourself you might have put the calipers in on the wrong side. this happens alot . if your rotors front and rear are fine then switch the calipers to the other side.

Hi it sounds like an ABS sensor is at fault hence the strange feeling brakes, Hope this helps