The story continues.....In driving the Impala all over the country on various Road Tours, one of the things that was weak was the Air Conditioner.......When I built the car in 2011 the only company I found that had a unit for the Impala was Classic Auto Air........I bought that unit and installed it.......But .....In driving the car with the A/C on it never really cooled off....I thought it was because of the Black Convertible top letting the heat in.....So.....This year we did the Good-Guys Road Tour and I took the Chevelle that has a Vintage Air unit in it....Crazy how efficient that unit is.....So.......When I got home I had both the cars in the garage......had them side by side and it was a hot day so I started them both up and turned the A/C on.....Went back and forth between them and the Chevelle was blowing ice cubes out the vents and the Impala was blowing cool air........Humm!!!!.....Since they were both in the garage there wasn't any sun influencing the Temps..... Hummm!!!!......The Impala system was just checked and the freon was right where it needed to be.......Hummm!!....So with both cars running I got out my thermal Heat Gun and started comparing everything....When I started measuring the Temp of the heater hoses and checked past the heater control valve and the Chevelle hose was room temp.........The Impala was a different story .....The hose temp past valve was about 20 degrees warmer than the Chevelle.......So......I figured the valve was bad....Went on the website and couldn't find a part number for the valve to order a new one.........I found all the instructions for the A/C unit from back in the day.....When I found the heater valve info.........It was very specific in showing that the heater control valve was to be installed in the return line and not to the feed line from the engine........Didn't make any sense to do it that way .....But!!!!......So I started looking around and seen that Vintage Air now makes a unit specifically designed for the Impala....Bought it and took the old unit out and installed the V/A set-up......Went from 2" vent hoses to 2 1/2".......WOW!!!!.....Once I get it charged it will definitely have the airflow to keep the car cool in the Summer Sun....
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