Heater not blowing hot air

I may not be your answer, but surely someone else on my end may be, if they jump into this thread if I get stumped!

(our end may need this "initial" info regardless)

It blows cold air and then the blower stops blowing?

Do you still hear the fan running when the air stops blowing?

Or is it the fan that stops all together (thus the air quits too)?

Was this a sudden occurrence?

Anything else you might add may be helpful!

The Medic

There are four main cooling system problems that can cause a heater to blow cold:
- Stuck thermostat.
- Air in the cooling system.
- Plugged heater core.
- Coolant not flowing through the heater core.
It is a little more complicated than that in practice, but these are the most common issues that you will run into.
Try to check these things and maybe you can fix it. Hope this will be helpful for you someway!

Great addition to this thread! Please feel free to help out whenever you are on the site :)

Cheers, Ken