Van heater not warming up-any auto mech types?

[forgop]

Originally Posted by cobra03

I would check the antifreeze first. My wifes car did the exact same thing last year and it was a combo of to little and to watered down antifreeze. i topped it off with a little straight antifreeze not watered down and it fixed it instantly.

I hadn't thought of this. I think I've got one of those gauges in my tool box and see what the concentration is.