...Replace the heater core too, even if it isn't bad. Guess what I spent the day doing? About a year ago, I replaced the blend door
https://www.fiero.nl/forum/A...110502-6-074099.htmlAnd about a week ago, the heater core went bad. SO I tore it apart again, saved my father another $800.
The heater hoses have these horrible quick disconnects, that I couldn't get to with the special tool, so I had to try squeezing them together with my bare fingers, which are now sore and missing some one or two layers of skin.
The truck has 203,000 miles on it now.