MSN Autos reported the blower motor problem as a resistor failure on the blower motor. In plain English, this means that the resistor on the fan motor which tells it to slow down to a lower speed than "max" is burnt out and no longer completes the circuit. If your heater is on & the fan isn't blowing, it's like a toaster in your dash, with no toast in it. It'll just smell like burning. Apparently it's a cheap fix. The resistor just has to be replaced.
need new blower motor...
I had one of these on a 1991 Wrangler and if I remember correctly it had 3 speeds. i currently have a 92 and it dose have 3 speeds
Heater blower resistor is what controls the low medium high speeds...
You rotors are warped and will need replaced/resurfaced.
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sounds like the blower motor resistor is out on the lower speeds.
you need a new rheostat !
could be thermostat or heater fan if you can hear all the speeds on the blower motor working then it could be your thermostat but your heater core might be plugged as well
A common problem is that the heater resistor/ circuit board is defective and need to be replaced. The main symptom is that the heater fan with not run on the three low speeds but will run on high.
the heater fan resister,it is or should be on inside or on outside heater box.
Probably the blower motor speed resistor is partially burned out.
99% of the time it is the heater resistor block, it is a bunch of resistors which gives you the different speeds. this is mounted close to the heater motor, pass side of the car. Usual cause of failure: water or snow inside the heater housing.