First a friendly note:
A motor is powered with electricity
An engine is powered by anything else, ( unless you live in England )
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In your Climate Control Unit
You have 4 doors, each run by actuators, actuators are usually interchangeable, ( a Mega Cab has 5 actuators )
Behind the upper glove compartment, there is a Recirculation Door
Below it & slightly to the left of the Fan, there is a Blend Door
Directly in back of the Climate Control Panel, there is a Mode 1 door
Just above where your right ankle would normally rest when driving, there is a Mode 2 door
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I would try moving the knobs on the control panel to see what is actually working. A/C, Low, medium, High speeds, heat or cold to the floor, heat or cold to the vents, cold to the defrost.
I would determine which heater hose carries the water into the heater & which is the return line.
Then watch a Youtube video on how to backflush the heater core in the cab, back flushing pushes any debris out the inlet hose, do Not use High Pressure
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Each actuator can be disconnected from the housing ( 2 screws ), & you can watch it cycle once you connect it back into the electrical socket
also once the actuator is detached, you can gently move the metal rod that moves the different doors, you may hear the door as it fully opens or closes.
If you decide to remove the Climate Control Box from under the dash board.
The Mopar Actuators are the quality unit
The different doors, you would want to stay away from the Mopar doors
Many people use the Dorman replacements
Personally, i would spend a bit more & get the ones from
https://www.blenddoorusa.com/
If i planned on long term ownership
Grab a beverage of your choice, put your feet up & hopefully learn about your climate control system
Well.... you asked for it now you got it. In my previous rant video : https://www.youtube.com/watch?v=XVTUa2d6q-A , I showed you guys a little bit of this 20...
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