You lastly found and repaired the leaky HVAC problem in your F-150, but now you should recharge it. This post will to walk you v the procedure of correctly recharging your air air conditioning to get cool air blowing with your vents when again.

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This article applies to the Ford F-150.

HVAC leaks space a typical issue in many vehicles, especially when lock really start to rack increase the miles. If you"ve skilled symptoms choose a lack of cooling, rapid cycling of the compressor clutch (compressor is turning on and off rapidly), or the clutch doesn"t engage at all, your refrigerant level is likely lower 보다 it requirements to be. If over there is inadequate refrigerant in the system, the pressure can drop to the point where the system is unable to nearby the press cycling switch. As soon as you"ve tracked down and repaired the leak in your system that resulted in the short refrigerant issue, it"s time come recharge, but it"s crucial that you execute it the right way to stay legal and avoid damaging the environment. Keep reading and also we"ll walk you through the process.

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Materials NeededOne or two cans the R134a (with hose and also gauge attached)Assorted usual size sockets/wrenches (optional)

Step 1 – Locate and open the low press valve

The low pressure valve is located under the hood on the passenger side, in the rear corner, tucked underneath one of two people the dryer cylinder or a fuse box, depending upon which design truck you have. There room two bolts that host the dryer cylinder in place on the side—remove the two bolts and also pull it increase just sufficient to access the low push valve. When holding the dryer cylinder the end of the means with one hand, unscrew and remove the low push valve with the various other hand. If yours is situated under the fuse box, you have the right to simply eliminate it without having to disconnect anything.

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Figure 1. Eliminate the bolts to access the low push valve.
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Figure 2. The low press valve is situated underneath this box.
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Figure 3. Gaining accessibility to the low push valve.
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Figure 4. Unscrew and also remove the valve cap.

Step 2 – Recharge the system

Connect the hose from a deserve to of the refrigerant to the low pressure valve. Begin the truck and turn her air air conditioning on high, and also make sure the vents space open. Keep in mind the press reading ~ above the valve, which have to be at the very least 45 psi. If it"s listed below 45 psi, over there isn"t sufficient refrigerant in the system and it must be recharged. Traction the take care of or push the switch on the refrigerant can to start filling the system, maintaining an eye ~ above the gauge. Use second can if one isn"t enough. Fill till you reach approximately 55 psi, i beg your pardon is a safe level that ensures girlfriend aren"t overcharging the device (and causing some expensive damage). When full, revolve off the truck and also disconnect the hose. Replace the valve cap and also any components you had to remove to gain accessibility to the valve.

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Figure 5. Hook increase the hose on the refrigerant can to the low press valve.
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Figure 6. Start the truck, rotate on the waiting conditioning, and take keep in mind of the psi shown on the gauge.

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Figure 7. Fill the device with refrigerant till you reach about 55 psi.

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