air conditioner is blowing out warm air ?

This is typical when the Freon is low. Here is a guide that will help with testing pressures and finding out if there is a leak. Let us know what the pressures are and we can go from there.

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

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

If there is no leak and it holds a vacuum, then use this guide to fill the system:

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

Below you will find a chart that helps with what pressures should be based on ambient temperature. Let us know what you find and we can go from there. Thanks