A/C Controls, I Was Hoping This Day Wouldn't Come

[SoonerJeep]

On the way home from a road trip yesterday the A/C quit blowing through the dash vents. I could hear the fan changing speeds with the switch so it works. I'm guessing it's either the control switch or a loose vacuum line (hopefully) or the flapper door actuators or doors (dread). I really don't want to pull the dash out.

 

[JeepCoMJ]

the blend motors operate off of vacuum. check all vacuum hoses in the engine bay and be sure that the rubber connectors are not dry rotted off.

 

[SoonerJeep]

the blend motors operate off of vacuum. check all vacuum hoses in the engine bay and be sure that the rubber connectors are not dry rotted off.

Thanks. Did that. Then started it to watch the actuators as I ran through the positions. Dash vents worked fine. I'm 99.9% sure the evaporator coil iced up.

 

[eemain]

Thanks. Did that. Then started it to watch the actuators as I ran through the positions. Dash vents worked fine. I'm 99.9% sure the evaporator coil iced up.

Low on Freon?

 

[SoonerJeep]

Low on Freon?

Yes. At 90F ambient the low side should be 45 to 55 PSI. Mine was running about 25.