Hi,
By chance and just for confirmation, do you know what the high and low side pressures are?
Also, I'm not sure if you have dual climate control or not. However, there are air temperature actuators (blend air door actuators) that are responsible for the air temperature entering the vehicle. I one or both (if you have dual climate control) are not working, that could be the issue.
I attached two pics below showing their locations. See if when you go from heat to AC if you notice them move, make noise, or hear the airflow direction change in the ductwork.
Additionally, take a look through this link. The link is for replacing one. It is designed in general to provide a general overview. But it also explains how it works. I thought it may be of interest to you.
https://www.2carpros.com/articles/replace-blend-door-motor
Let me know.
Joe
See pics below.
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Wednesday, July 31st, 2024 AT 8:43 PM