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3 answers

There is no expansion valve. The AC system on your 94 F150 doesn't use an expansion valve, it uses a cycling switch mounted on the accumulator and a high pressure switch mounted by the compressor to control the system pressures as the refrigerant flows throw a restriction called an orifice tube that is located in the high pressure line just before the evaporator core. Basically if the system gets too cold and starts to freeze up the pressures drop causing the cycling switch to turn off the compressor till the pressure rises again, if the pressure in the high side rises past the spec the high pressure cutout switch kills the compressor till the pressure drops to normal. Hope this helps.

2007-07-25 14:21:49 · answer #1 · answered by bikertrash 6 · 1 0

There is no expansion valve on this truck,instead it uses an orifice tube located inside the evaporator inlet tube at the bottom of the receiver drier,there is a bracket holding this tube.HTH

2007-07-26 07:10:47 · answer #2 · answered by CarmaNguyen 7 · 0 0

It doesn't have one. It has an orfice tube that is located in the high pressure line near the evaporator.

2007-07-26 07:46:58 · answer #3 · answered by Anonymous · 0 0

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