Car heater blowing cool air

Welcome to 2CarPros.

First, check to make sure the engine coolant is full and clean If it is, pay attention to the engine temperature gauge. Is it running at operating temp? Next, there is a component called a blend air door actuator which determines the temperature of the air entering the vehicle. It could be an issue also.

Take a look through this link:

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

Also, take a look through this link as well:

https://www.2carpros.com/articles/car-heater-not-working

Let me know if any of that helps or if you have questions.

Take care,
Joe