2000 4x4 nbs tahoe manual heat/ac controls for temp and fan speeeds
recently i noticed that when i set the fan speed on 1 or 2 there is no air movement. it seems the blower motor is not functioning. when i turn it up to 3-4-5 then it works but they all seem a bit slower then in the part. most of the time i would have the blower set to 1 or 2. i dont know if the problem is with the blower motor (my thought was if its a motor problem it wouldnt work at all whether low speed ot high speed) the other possibilty was the actual speed selector/dial on the dash. is it possible that the switch could be "worn out" at the 2 slower speeds since thats what i usually run? any thoughts?
thanks