Down-draft radiator fan failure

[patticake]

Also, check the motor to see if there are oil caps on the ends(for the bearings). Mine has them, is the reason I say this. Then check in the area where you are parked to see if there is a place that rebuilds them. It sounds, to me, like the bearings are going bad. You can remove the motor, take the end plate off and check the bearing. Might not have to completely remove the motor to that, with the outer bearing.