CHPMustang
Senior Member
You may need to have the AC refrigerant checked out to see if it's at the proper level.
For the best cooling set the dial at "Max AC" which recirculates the cool cabin air thru the evaporator versus drawing in outside hot air against the evaporator.
You may need to flush out the AC evaporator with "Kool-it" Evaporator & Heater foam cleaner. Linky
Only the Excursions came with the coolant shut off valve from the factory but one can be added on. Just order the kit from Dieselsite
The AC in our Excursion actually gets colder the more humid it is outside.
For the best cooling set the dial at "Max AC" which recirculates the cool cabin air thru the evaporator versus drawing in outside hot air against the evaporator.
You may need to flush out the AC evaporator with "Kool-it" Evaporator & Heater foam cleaner. Linky
Only the Excursions came with the coolant shut off valve from the factory but one can be added on. Just order the kit from Dieselsite
The AC in our Excursion actually gets colder the more humid it is outside.