When I bought 2nd gen 1 recently the ac never felt cold in the cab, but cold at the vent, especially in the Houston heat, the flow at the vent wasn't as strong much as my previous 14'. I replaced the recirc vent flap and actuator under the passenger side, (not easy with dash in the car). The ac finally started blowing colder and more flow through the vents. Before that I had the freon checked, I replaced the actuator under the driver side foot well since it was broken too, even swapped out the blower motor and resistor due to a vibrating noise (unrelated). My guess was there wasn't enough air flow through the coils since the flap was broken off causing a restriction at the blower inlet. Might be worth checking out. Is there any long term reviews on that Infinity overland air filter that installed under the cowl? I was curious about how water and moisture doesn't make its was into that filter?