I have 86 coupe and the ac and heat controls arent working right.
Heres what I have. The ac pump runs. Blue line cool. Red line hot. The pipe on upper rad support is cold and wet with dew. Like a cold beer on sunny day. The line running into firewall is also cold. The cold air doesnt reach interior.
Also my center dash vents dont work but there is air on windshield defroster. Outward vents on dash and footwell getting air.
Is there a valve that controls ac flow through the inner exchanger.
How do I get to valve that controls door in heater core area.
Also it doesnt control heat very well