Not hot air.

[therealwriter]

I have a 1999 Landrover Discovery II that will not blow out hot air. I have tried the folllowing: Changed thermostat, flushed the heater core and changed the hoses. What else do you think it could be? Any input would be greatly appreciated.

Thanks in advance.

 

[joey]

Welcome to the forum... I will move the the Disco section to get more responses.

 

[Maddie]

Is the temp gauge running at normal operating temp? Best to test thermostat in a *** of water stove top b4 installing to make sure it's opening at proper temp. I've been amazed as to how many have failed in my lifetime. Otherwise I'd look into the heater control unit or make sure there is enough coolant in the system maybe airlock trouble.