2006 Ford F350 AC Issues

CJ Morin

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First and foremost, forgive me if this is in the wrong forum.
Second I am posting this across multiple forums to get the most potential exposure for help.

Ok so first brief overview before my issue is addressed. In early September I had my AC rebuilt and the compressor, evaporator, orifice tube and hoses replaced. The AC worked great up until around thanksgiving no col air would come out only the outside ambient air. Also when it gets cold no hot air blows, only the outside ambient temperature. I have the digital AC control system.

The AC blower works because it blows the ambient outside air, I believe the clutch works because the cold line at the condenser gets cold and has water dripping from the condensation. I checked the blend door actuator and it is not working, I manually adjusted the door, I did so by removing the actuator and opening it up. I removed the gear that attaches the motor to the arm then reinstalled it without the cover. Once in position I turned the arm back and forth while adjusting the temperature on the AC controls and there was no change. So I put the gear back in place leaving the blend door fully open. Once I figure out the cold air concern I will replace the blend door actuator. I checked the vacuum lines and I don’t believe that is part of the problem.

I am lost after this part, I tried searching the forums and googled different types of questions and watched many videos trying out the many steps I saw and read. None directly related to my situation but I attempted them anyway to no avail.

Any help or advice would be greatly appreciated.



I am including the picture of the actuator and where it is located behind the glove box. Also the gear I removed to manipulate the blend door.

MrHTMotor-Listing-Picture-25019.jpg


15-ExplorerBlendDoorActuator.jpg
 
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CJ Morin

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No still blowing ambient air. I do need to replace the actuater but that is a minimal thing until the AC is up and running again. it's 80+ with high humidity right now so that is a priority right now.
 

JLDickmon

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how about the suction line from the evaporator?
Generally, that's the one that will get cold, the liquid line to the evaporator should be warm-ish to warm.

Second question.. how is the compressor cycle time? It should be 20-30 seconds "on" and then 15-20 "off"

A rapid cycle would indicate an undercharged system, long cycle times are overcharged.

If the liquid line from the condensor (front) of the truck is dripping and cold, that indicates a restriction/clog there. The orifice tube (fixed "expansion" valve) is actually back near the evaporator. The line between the two should be warm to hot to the touch.
 

CJ Morin

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how about the suction line from the evaporator?
Generally, that's the one that will get cold, the liquid line to the evaporator should be warm-ish to warm.

Second question.. how is the compressor cycle time? It should be 20-30 seconds "on" and then 15-20 "off"

A rapid cycle would indicate an undercharged system, long cycle times are overcharged.

If the liquid line from the condensor (front) of the truck is dripping and cold, that indicates a restriction/clog there. The orifice tube (fixed "expansion" valve) is actually back near the evaporator. The line between the two should be warm to hot to the touch.


I am not sure about that I need to go check all of that out. Thanks for the info.
 

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