A/C not working properly

This is a common sign that the fan is not working properly, or the system has a weak charge.

Basically, when you are moving the air is moving over the condenser cooling the freon but when you stop it is not moving.

So, let's start with checking the fan operation when you are sitting still and then check the pressure in the system.

Here is a guide that will help with this:

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

Once we know what the pressure is we will have a better idea as to what direction to go. I am attaching a chart below which will help with determining what the possible causes are.

If you are going to recharge the system here is a guide that will help assuming you find a weak charged system.

https://www.2carpros.com/articles/air-conditioner-how-to-add-freon

Let me know what questions you have with this and we can go from there.

Thanks