My heater is not working?

Hey TRALO143,

I'm suspecting a possible defective heater core. Check the inlet hose for the heater core and it should be hot once the vehicle is up to operating temperature. Then check the outlet hose for the heater core and it should be equally as hot. If the inlet is hot and the outlet is anywhere from cold to barely warm, you have a bad heater core.

If that checks out it could be the blend door actuator not working. It looks like it is under the dash on the passengers side. You will need to remove the glove box to change it out.

Here are some guides that will help you get the problem fixed.

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

and

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

Please run some tests and get back to us so we can continue helping you.

Best, Ken

Is the engine running at a normal opperating temp? IF it is, with the engine running, hot, and the heater on, feel both heater core hoses. THey should both be hot. If one is hot and one cold, chances are the heater core is plugged. If both are hot, then the blend door needs to be cheked. It determines if you get heat or AC.

Let me know what you find or if you have other questions.

Joe

With it running and warm check the hoses going into the firewall to see if they are hot, one usually is hot and the other just warm. There may be some junk in the heater core. Would suggest after trying the heater with different heat setting. Had to do it to our Ford truck, I back flushed the heater core and all kinds of junk came out. Then repeat, note you will have to take the two hoses off so make sure the coolant level is low so it will not get all over. Then take a piece of hose and put it on each line. You do not have to have the vehicle running. I am ruling out the thermostat as the gauge reads normal.

It sounds like you have a temperature blend door actuator that is not working. Here is a guide to help you see what you are in for when doing the job:

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

Below is the location in your car. I gave you all actuators just in case.

Check out the diagrams (below).

Please let us know what happens.

Cheers, Ken

Glad you could get it fixed, that kind of problem can be tough. Please use 2CarPros anytime we are here to help

Cheers, Ken