Blower Motor Problems?
I have a 1991 Ford Thunderbird 3.8, the problems with the blower motor for the heater will only run on the first speed and sometimes on the second speed when I try the third speed it will quit..Then the blower will not work at all until the car is turned off and started again. Now I did check the fuse in the fuse box and under the hood they are fine.. I even changed the fuse (30 AMP) and it still is acting up.. Now I did have the blower motor changed about 5 months ago.. Could this be the heater relay that controls the speed of the fan? If so where would the fan relay be located?