A/C blowing hot

[wizzorm2g]

2012 EL XL
every so often i will get a squeal from belt area that only lasts a few sec. have verified clutch pulls in and spins when AC turned on. it is blowing 103 out the dash and 107 out the rear.
Got a can of AC pro recharge which has a guage on it , and it read 84psi on the cold side so i didnt go any farther. Any ideas before i take it somewhere??

 

[rjune5]

If you have checked the hvac unit and all is ok. It's most likely that the door blend or hvac door blends have gone bad or gone off track.

 

[rjune5]

Ford Expedition - TEMPERATURE BLEND DOOR ACTUATOR REMOVAL / REPLACEMENT (2007 - 2014)
Find a video of the above info.

 

[DeafBringer]

Info I've gathered from this forum so far on the topic in preparation for my blend door replacement project:

Here is the thread: https://www.expeditionforum.com/threads/actuator-blend-door-lessons-learned-front-and-rear.53171/

video: https://www.youtube.com/watch?v=7MSpO0AkZIk

Supposed blend door reset procedure:

This is a reset procedure for the actuator to relearn the full cold and full hot positions for the door.

In the Passenger Compartment Fuse box, pull fuse #46, (Owners manual says "Climate Control, Auxiliary Relay Control."
Remove fuse for 1 minute, then replug back in. Make sure the ignition is off when you do this.
Before you turn ignition on, make sure the HVAC system is in the off position.

When you turn the ignition to the "on" position, do not touch the temperature controls. Wait 1 minute for the actuator to recalibrate itself.

Once a minute has passed, turn off ignition, then turn back on. Now it has learned its position and is ready to use.

 

[S20Workstation4]

2012 EL XL
every so often i will get a squeal from belt area that only lasts a few sec. have verified clutch pulls in and spins when AC turned on. it is blowing 103 out the dash and 107 out the rear.
Got a can of AC pro recharge which has a guage on it , and it read 84psi on the cold side so i didnt go any farther. Any ideas before i take it somewhere??

 

[max78]

2012 EL XL
every so often i will get a squeal from belt area that only lasts a few sec. have verified clutch pulls in and spins when AC turned on. it is blowing 103 out the dash and 107 out the rear.
Got a can of AC pro recharge which has a guage on it , and it read 84psi on the cold side so i didnt go any farther. Any ideas before i take it somewhere??

Check your blend doors, but 84 PSI on the low side means there is something wrong, it should be 55psi max.



Go to the auto parts store and rent some gauges (its free) and get your high and low side pressure.

If both pressures are high the system is over charged

If the low pressure is high and the high side is low, it could be a sticking TXV.

 

[wizzorm2g]

yes I got a Guage set to verify and the high and low side were the same psi, meaning even though compressor clutch pulled in, it wasn't functional. Replaced compressor and everything is fine