I need help diagnosing an issue I haven't seen before.
I just got a 99 Dodge Dakota 4x4 with the V-8. Initially I thought the AC was
not working as it only blew hot air. I live in AZ ac is nice to have. I recently
took a trip north to MT and noticed something odd. While travelling the
colder the air outside got the cold the air the hvac system blew. it would get
cool but not cold. On the way back as the temperature got warmer so did
the air blowing out. I have not see this before any suggestions as to where
I should start looking?