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My air is on the blink. Have had the truck in shop checked feron vac it out put on new compressor . Refilled with freon has right amount in. Still doesnt cool checked for blockage seems ok. dryer allright any good air men out there. I had this work done in a good garage.Still not cooling. br0nc0
Did it work at all? If it worked for a bit and then **** the brick again, you probably have a leak somewhere in the system. Hopefully the shop you brought it to put dye in it so they can find what is leaking. It is common for shops to send a car/truck out the door without actually fixing the problem. They stick dye in it and hope you come back so they can get to the bottom of the real problem (the leak).
You could have a plugged orifice screen. They might have not checked it because of its age.
Do these trucks have orifice screens or expansion valves?
The original poster mentioned a dryer, but if it is in fact an orifice valve, then it would have an accumulator. Not being picky, just generally curious.
Some time in the late 90’s ford changed to orifice screens and did away with the expansion valves. The systems look almost the same, and the orifice screen is just in front of the evaporator. Same place the expansion valve was, the valve normally doesn’t plug but the screen does. Ford still uses the expansion valve on rear air systems.