I thought I would share my experience on using a different heater control valve to help your AC cool a little better.
As most of you are aware there is always some hot water in the heater core from leakage past the heater control valve and due to heat transmission from the water in the engine block on the opposite side of the heater core from the valve.
There is a heater control valve that will over come this issue as it has 4 ports and totally isolates the heater core so your AC does not have to fight the heater core, even if it is on a reduced scale.
The heater control valves from the mid 80's Dodge turbo Daytona's work great for this purpose. it is inexpensive and easy to install. Here is a photo of the one I most recently installed. Because it functions as a closed loop until the valve is actuated there is no flow of water into the heater core in the AC mode.
Just thought with summer coming on it may help make a 4 to 6 degree difference in your outlet air.
As most of you are aware there is always some hot water in the heater core from leakage past the heater control valve and due to heat transmission from the water in the engine block on the opposite side of the heater core from the valve.
There is a heater control valve that will over come this issue as it has 4 ports and totally isolates the heater core so your AC does not have to fight the heater core, even if it is on a reduced scale.
The heater control valves from the mid 80's Dodge turbo Daytona's work great for this purpose. it is inexpensive and easy to install. Here is a photo of the one I most recently installed. Because it functions as a closed loop until the valve is actuated there is no flow of water into the heater core in the AC mode.
Just thought with summer coming on it may help make a 4 to 6 degree difference in your outlet air.