abs actuator
 

the abs actuator makes a noise like a pump or a viberation when key is turned on (but not starting engine) noise last a couple of seconds.I here this same type of noise while driving when it shifts to overdrive.turn overdrive off then on it makes sound at shift point.is the abs system and tranny connected some how?the abs light never has come on and tranny shifts fine.need help.

2002 F250
5.4 liter
automatic