There perhaps is nothing more uncomfortable than being in a car on a hot summer day with warm air blowing out of the vents when the air-conditioning system is turned on. This could be occurring ...
The typical '86-'93 Mustang R-12 A/C system sees dash-vent temperatures in the 40- to 42-degree range on fan speed one. However, when a basic R134a conversion is done (a simple change of refrigerant ...