Under the coolant reservoir near the battery.
In the liquid (low pressure) line at the condenser connection.
BR
You're boned
there isn't an orfice tube it has an expansion valve which is located on the inlet of the evaporator
spring clips around the tube
Orifice tube on f150 with 4.2
It does not have an orifice tube.
It uses an expansion valve, not an orifice tube.
The orifice tube is located between the engine and the fire wall. The windshield wiper cowling has to be removed to gain access to the orifice tube.
passanger side of radiator. inside the aluminum tube. has a nut on it to take apart for the orifice tube
You don't. You replace it. They're cheap. Get a new one. No matter how much you clean it, it will never work right.