My name is ***** ***** I will assist you.
Your A/C system has a tiny vacuum line that goes from the control usint (selector on the dash) out the passenger side of the car and goes over the top of the engine to the brake booster on the driver side. Go under the hood and look for a small plastic hose coming out of the firewall near the a/c accumulator. The accumulator looks like a can with a two metal lines going to it. Right next to it you'll see the heater hoses going into the firewall and right under you will see the small plastic hose. Chase that hose and see if it is broken or cracked. It gets a lot of heat from the engine and gets brittle, then cracks. I tend to find them broken between the passenger side of the engine to the top of the engine.
If it is broken, you can buy a 5/32" OD rubber hose at the auto parts store for about $3 and you just cut a piece off and splice the broken piece. It is a very common Ford problem.
Now if the line isn't broken, then on the back of that control head unit is where the line goes in. What happens is the rubber on the back breaks and leaks there as well. That piece can be bought for $5.99 at the auto parts store. It is held in with 2 screws. I usually take the old one in and they match it up. It is the second most common issue with Fords.
Last is the actuator itself, which os on the left side of the air box behind the dash panel. You can reach up behind the glove box or remove the glove box. They tend to las the lif of the vehicle though so I doubt it is an issue, but just in case. It is held with 2 small T20 Torq screws. You just remove the scews, pull the vacuum line off, and swap with a new one. They are about @20-25.
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