Air conditioning just on driver side?

2020 DODGE DURANGO
92,000 MILES • 3.6L • 4WD • AUTOMATIC
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MILLERJACOB400
  • MEMBER
  • 1 POST
A/c blowing just on driver side.
Jul 8, 2026 at 4:56 PM
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STRAILER
  • ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
Yep, you need a passenger side blend door actuator replacement. this is common, here is the location of the actuator so you can swap it out, an a guide to show you how to reset the system.

https://www.2carpros.com/articles/step-by-step-guide-to-reset-your-cars-hvac-system-an-essential-for-every/

1. Position the blend door actuator (1) into the vehicle.
2. Install the blend door actuator to the right side of the HVAC housing (4). If necessary, rotate the actuator slightly to align the splines on the actuator output shaft (2) with those on the blend door drive gear (3).

1. Install the two screws (1) that secure the blend door actuator (3) to the right side of the HVAC housing (4). Tighten the screws to 2 N·m (17 in. lbs.).
2. Connect the wire harness connector (2) to the blend door actuator.
3. Install the right side floor distribution duct (Refer to 24 - Heating and Air Conditioning/Distribution/DUCT, Floor Distribution - Installation) .
On LHD models, install the glove box closeout and the glove box (Refer to 23 - Body/Instrument Panel/GLOVE BOX, Instrument Panel - Installation) .
4. Install the right side instrument panel silencer.
Connect the negative battery cable.
5. Initiate the Actuator Calibration function using a scan tool (Refer to 28 - DTC-Based Diagnostics/HVAC - Standard Procedure) .

Check out the images (below). Please let me know what happens.
Jul 9, 2026 at 4:07 PM
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