A/C not working properly

I am not sure I understand. You have cold air when the A/C is on except when you are accelerating then it blows hot? Then a second issue is when the A/C is off you have hot air blowing in?

Either way, we need to start with checking the pressure in the system. If it blows cold then it should be okay. However, we need to check it and not make that assumption.

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

I am attaching a chart below that will help with proper pressures.

Next the most likely cause of this is a blend door issue. So, we need to access the door and when it is blowing hot when the A/C is on, we need to access the blend door actuator and see if it is moving. If this is happening, then I am pretty sure the actuator is the issue.

https://www.2carpros.com/articles/replace-blend-door-motor

Take a look at the attached for this actuator but let me know if I am understanding this correctly.

Thanks

Got it. No apologies needed. It's not easy to describe these things that happen.

It sounds like the air inlet door is stuck so that the air is allowed in at all times. So, when you have the AC on it passes the air over the evaporator and cools it down.

When you have it off, it is allowing the hot air to come in from the engine or outside. The acceleration forces it in, and you feel it through the ducts.

I am attaching the process below on how to replace this. If it were me, I would try replacing this based on this info.

It is hard to orient myself but that white/tan square plastic piece appears to be the blend door actuator. The air inlet door is going to be vacuum controlled which will be a vacuum actuator like the one I am pointing too.

Try and move the fresh air control to recirculate and see if this actuator moves.

If it doesn't then try manually moving the actuator and see if the issue still happens.

That looks like the breather hose that connects to the intake tube.

The hose should be in about the location that it plugs into.

So, feel around the hose that I am pointing too and see if you can find a hole.

You are welcome. Thanks for using 2CarPros and let us know if you have other issues. We will need to get a new post started for them, but we are here to help if you need anything.

Thanks again.