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Q: REAR AC on 1993 Ford Aerostar

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MY VAN HAS DUAL AIR AND IT IS COOLING GREAT IN FRONT BUT NOT IN REAR
(1) Answer
I had the same problem with my 1993 aerostar. I took it to ac shop and they had to remove electrically actuated valve in coolant line and replace it with a short piece of flexible hose approx 18" long. The valve is inside the cover at rear unit, now my rear air works just fine. Ford said the valve wasn`t needed. It was redudant. so my problem was solved, of course had to pump down and recharge system.