GMC Truck Forum banner

1 - 4 of 4 Posts

·
Registered
Joined
·
3 Posts
Discussion Starter #1
I have a 2001 GMC 2500 Hd problem is when I turn on AC it Blows Hot Air But Line is Cold outside under hood by dryer I’ve installed new Evaporator and switches and dryer can’t seem to figure out what is wrong with the Trucks Ac
 

·
Registered
Joined
·
5 Posts
Begin by solving the heater problem before you worry about AC. The heater will easily overpower the AC - no contest, really - and no amount of fixing the AC is going to help At All until your heater is off. Since the heater is a much simpler system, start there. Blend door, coolant valve, control linkages, the basics. Get the heater blowing Unheated ambient-temperature air first, then turn on the AC and we can get busy.
 
1 - 4 of 4 Posts
Top