2010 Dodge Challenger fixing blend door actuators

The symptoms you describe, such as the flashing amber light on the defrost knob, loss of airflow, and clicking sounds when opening the driver's door, suggest a potential issue with the blend door or the blend door actuator in your HVAC (Heating, Ventilation, and Air Conditioning) system. The blend door is responsible for directing the airflow between the various vents, including the defrost vents, dash vents, and floor vents.
Here are some steps you can take to further diagnose and address the issue:
1. **Blend Door Actuator Inspection:**
The clicking sound you hear when opening the driver's door might be related to the blend door actuator. The actuator is a motorized component that controls the position of the blend door. Check if the clicking sound is coming from the actuator. If you can access it, inspect for any visible damage or obstructions.
2. **Check for Obstructions:**
Sometimes, foreign objects or debris can obstruct the movement of the blend door. Check for any visible obstructions in the HVAC ducts.
3. **Perform HVAC Self-Test (if available):**
Some vehicles allow you to perform a self-test on the HVAC system. Refer to your vehicle's service manual for instructions on how to initiate a self-test. This may provide additional diagnostic information.
4. **Inspect Wiring and Connectors:**
Check the wiring and connectors associated with the blend door actuator and the HVAC control module. Ensure there are no loose connections, damaged wires, or corroded connectors.
5. **Professional Diagnosis:**
If the issue persists after the above checks, it may be advisable to seek professional diagnosis from a qualified mechanic or a Jeep dealership. They can use diagnostic tools to retrieve fault codes and perform more advanced testing on the HVAC system.
6. **Consider Blend Door Calibration:**
In some cases, the blend door may need recalibration after a control module replacement. Refer to your vehicle's service manual for instructions on how to calibrate the blend door system. Calibration procedures can vary between vehicle models.
It's worth noting that even though you replaced the control module, the issue may still be related to the blend door actuator or the blend door itself. The clicking sound when opening the door suggests that there may be a connection.
Remember to consult your vehicle's service manual for model-specific information and procedures. If you're not comfortable with the diagnostic process, seeking assistance from a professional mechanic is recommended.

You need to check or replace the vent selector actuator / flap. If it is clicking then the actuator/flap is either stuck or the actuator has stripped or not secured to the flap / shaft securely. The fact that it's clicking means it's operating but not able to move or sense position. Upon replacement the dealer may have to reprogram system for it to know the actuator is replaced. The blend door just regulates temperature by blending more or less air from the heater core into the ducts.

Temperature Blend Door Actuator - RH, EATC Removal and Installation

1. Remove the RH floor console finish panel.

1. Lower the glove compartment.

1. Disconnect the RH temperature blend door actuator electrical connector.
2. Remove the 3 RH temperature blend door actuator screws.
1. Remove the RH temperature blend door actuator.

2006 2010 Ford Explorer NO Heat Passenger Temp Actuator Replacement same as mountaineer

If the driver's blend door actuator has failed completely, or the wiring to it is damaged, you will not hear any clicking. Check for appropriate voltage at the blend door actuator, and determine from there if it's the actuator or the control unit.

I don't have a manual for your model, but did find a YouTube video for a 2008 Dodge Avenger showing the location of a couple of actuators on the HVAC box. It may not be exactly the same for your car, but it should give you an idea of what you're looking for.
There are a few more videos for Dodges, but mostly for Rams (pickups).
2008 dodge avenger blend air actuator location

Yes, bad actuator or vacuum leak.

I would pull off the blend door actuator and swap it out with a new one. Or another option is to swap it out with one of the other actuators. The blend door actuator is interchangeable with the actuators for the mode-air doors and the recirculation-air door.

Disconnect and isolate the negative battery cable.

If equipped, remove the silencer from below the driver side of the instrument panel.

Disconnect the wire harness connector from the blend door actuator located on the driver side of the air distribution housing.

Remove the two screws that secure the blend door actuator to the actuator mounting bracket and remove the actuator

bad water pump

I have taken my 2010 Dodge journey in 3 times. Actuator replace system flushed out and still no one knows the answer. It's getting cold here so I think the answer is sell it.