Cold air in front but warm air in rear of 02 expedition
We had the clicking noise in the rear drivers side of the expedition and had the actuator motor replaced. The noise stopped but the air is still warm in the rear only. The front gets ice cold. What should be checked next?
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Re: Cold air in front but warm air in rear of 02...
There are two atcuator in the rear a/c. Either the actuator is not working or is unplugged. You can remove the top cover to check it. The actuator on the side of the case is your temperature one. the one on top is the roof/floor actuator. I hope this helps.
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These vehicles came with 2 types of ac controls.
The vacuum control system uses vacuum to actuate the vents and ducting from hot to cold. A lot of times the HVAC vacuum line in the engine bay (black hard plastic) is either broken or disconnected from its vacuum source.
The electronic vent control: does everything at the control knob via vent actuators and the control panel itself. With this one it could be any of the components. You would have to locate them and verify operation by moving temp/vent selector.
I had the same problem with 2004 Expedition. Changed the actuator for the blend door. This is the one that determines the air temp (cold ---- hot). Purchased Actuator from Advance Auto Parts and installed. I was able to install this pulling out on panel, but it's tight and you will have limited movement and sight. It started clicking again in about a year. After reading other solutions, I realize my Blend Door may be hanging at times. It currently only clicks on coldest setting. If it's moved off of cold a little the clicking will stop. I have also noticed if the setting is not moved in just the spot and you use other electrical current such as windows or brakes it will click because of voltage change and will need adjusting more. I have to adjust this setting in the front if set on front controls as well as the rear if set for rear control. It works fine on Warm or Hot setting. I plan to check door binding when I have time. Good Luck
no....This is the rear A/C & heater actuator blend door malf/broken. This is very common on expeditions and I encountered the same issue in my 2006 expy. This door switches from hot to cold vents, once stuck only hot air will blow. Also, is there any thumping or tapping noises from the right rear panel (this is where the rear a/c unit is)???
possible blend door actuator faulty, or a faulty blend door. This door switches from hot to cold vents. On expeditions equipped with rear AC front and rear AC have seperate actuators. Hopefully this helps!!
Sounds like your rear actuator for heat and cool is stuck in one position this normally happens when the plastic gears shear down, you will need to change out the actuator. You have two on the rear passenger side, one is for teh hot and cold and the other is for teh upper and lower air
The car uses the same freon in the front as it does in the rear. If the rear a/c is working, you either have a plugged evaporator in the front unit, or perhaps a bad heater switch. Try switching the heater to hot and see if it blows even warmer air from the front vents. If so, the heater switch is working and then it sounds like a plugged evaporator or maybe a plugged orifice tube. That is a good place to start looking. Hope this helps.