My Heater and Ac fan only works on High

200

Asked by Apr 02, 2012 at 09:38 PM about the 2001 Dodge Durango Sport 4WD

Question type: Maintenance & Repair

When I turn my switch on for the fan on the heater and Ac it only works on full blast.

6 Answers

275

sounds like a resistor switch is bad to me

10 out of 10 people think this is helpful.
200

Where is the resistor switch located?

20 out of 20 people think this is helpful.
3,085

the resistor block as it is called is usually located in the A/C blower box on the passenger side firewall under the hood . It wil lhave a spade terminal connector with about five or six wires going to it . unless they changed where they put it , but that is where it used to be

10 out of 10 people think this is helpful.
6,445

Chances are if the resistor is bad the plug and blower motor are the cause. High resistance in the motor causes the resistor to usually burn out.

5 out of 5 people think this is helpful.
2,605

yes this is the resistor, it is located under the dash on the pasenger side, very easy to get to. Be sure to get a new resistor with the pigtail so you can change the end of the wire that connects to the resister, it is a better version with heat shield, chances are that your wires next to the plug are gone bad to.

13 out of 13 people think this is helpful.
2,605

And I dont thin it is the motor if it is running fine on full blast. These resistors are known to go in the Durango but not the blower motor.

11 out of 11 people think this is helpful.

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