The blower motor resistor in a 2013 Dodge Dart is a crucial component of the vehicle's heating and cooling system. It regulates the speed of the blower motor, ensuring that air flows at the desired rate through the vehicle's vents. Understanding its function, symptoms of failure, and how to replace it can help owners maintain their car's HVAC system effectively.

Understanding the Blower Motor Resistor

The blower motor resistor controls the voltage supplied to the blower motor. By adjusting this voltage, it changes the speed at which the blower motor operates. When functioning correctly, drivers can select different fan speeds for their heating and cooling needs.

Symptoms of a Bad Blower Motor Resistor

Recognizing the signs of a failing blower motor resistor is essential for timely repairs. Common symptoms include:

  • The blower motor only operates at high speed.
  • No air is coming from the vents.
  • The blower motor is stuck on one speed regardless of settings.
  • Inconsistent operation where some speeds work while others do not.

These issues often indicate that the resistor is malfunctioning and may need replacement.

Location of the Blower Motor Resistor

In the 2013 Dodge Dart, the blower motor resistor is typically located under the dashboard, near the passenger side. It can often be found next to or behind the blower motor itself, making it somewhat accessible for replacement.

Replacing the Blower Motor Resistor

Replacing a faulty blower motor resistor can restore proper functionality to your HVAC system. Here’s a brief overview of how to replace it:

1. Disconnect the Battery: Always start by disconnecting the negative terminal of the battery to prevent electrical shorts.

2. Remove Panels: Take off any necessary panels under the dashboard to access the blower motor resistor.

3. Unplug and Remove: Disconnect the wiring harness from the resistor and remove any screws holding it in place.

4. Install New Resistor: Position the new resistor in place, secure it with screws, and reconnect the wiring harness.

5. Reassemble: Replace any panels removed during installation and reconnect the battery.

6. Test: Start your vehicle and test all blower settings to ensure proper operation.

FAQs About Dodge Dart Blower Motor Resistor

    • What causes a blower motor resistor to fail?
      Common causes include overheating due to high amperage from a defective blower motor or corrosion from moisture.
    • How much does it cost to replace a blower motor resistor?
      The cost can vary widely based on labor rates and parts but typically ranges from $50 to $150.
    • Can I drive my car with a bad blower motor resistor?
      While you can drive with a malfunctioning resistor, you may experience limited airflow, which can affect comfort.

Maintaining your 2013 Dodge Dart's HVAC system by monitoring and replacing components like the blower motor resistor ensures optimal performance and comfort while driving.