I have a 2004 Ford Expedition , when i first turn the blower/heater on there is a loud noice underneath the car. If the heater/blower is set on 1 before i start the car its ok .
yes the blower motor bushings are worn causing the motor armature to go in a frenzy ,a new unit isn't too costly
Had the same problem and it was a bad motor. Replace it.
Search Ford Expedition Questions
Ford Expedition Experts
Related Models For Sale
Used Cars For Sale