What is the cause of the heater to blow cold air when the car is obviously warmed up?
My 08 Milan has started to blow cold air when heat is needed. I can set
the temp at maximum, in either auto or manual modes and even though
the car is obviously warmed up, I get lukewarm or cold air. I do notice that
if I run the car at faster speeds I can get the air temperature to increase,
but that is usually temporary, especially if I come to a stop and just idle.
Any ideas where to start with troubleshooting or is there a common part
that is the culprit? Thanks. Steve
