blower motor

[henry tanner]

i blower only works on 4. 1,2,3 it dose nothing is that the relay or something else.

got any techs here or has anyone had the same problem any insight would help.

thanks

hdt

 

[Kevin Palmer]

There is a rheostat that drops the voltage for speeds 1, 2, and 3. It is not used for speed 4 as it gets a full 12 volts. I would bet this is what is defective. You will find it either bolted or riveted in the ducting for the fan as it uses the air from the fan to cool it.



I believe it is on the passengers side near the hood hinge area from under the hood.



Other have replaced this, I am sure someone has a picture of it...

 

[henry tanner]

this is the same for both heat and ac

 

[Kevin Palmer]

Correct, either or. There is only a single rheostat..

 

[henry tanner]

so how do i check it and if so how much?

 

[Mark K 2]

I doubt it's a rheostat. It's always been a series of resistors on every Ford I've seen.

 

[Kevin Palmer]

The official term they use is rheostat. Why??? I have no clue. But you are correct, it is a combination of resister wires within a single unit.



hdt, see if it is getting voltage, if so, you can also check to see if voltage is coming out and the various volts. Once you get that info, it should be enough for you to figure out what is not working..

 

[henry tanner]

the name ford said it is called resister find out price right now. $28.69

 

[henry tanner]

they also say it is behind the blower motor.

 

[henry tanner]

can someone please find out where it is and let me know thanks

 

[TRACket Paul]

Look on the front of the blower motor housing, below and to the right of the blower motor. The connector has four wires, LG/WH, BK, YE/RD, OG/RD.



You're Welcome.

 

[Doug Watts]

You can see the rectangular opening for the step resistor under the wiring harness. The resistor itself is setting on top of the foil. This resistor probably burned out. It's easiest to get to if you remove the two resevoirs first.



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