i mentioned a few qeeks ago that my heater wasn't working to well.
well it has been working decent lately but tonight i was out driving it was working good then all of a sudden it was freezing cold air coming out of it for a few minutes then it went warm again and my temp gauge was normal
so would this most likely be air in the heater core or could it be something else?
I don't know how cold the air would get and how fast it would get cold with air in the system but you could try bleeding the system. It could also be a problem with the hot/cold blend door. I didn't read your previous post a few weeks ago. Did you do the diagnostic test for codes?