You lastly found and also repaired the leaky HVAC trouble in her F-150, but now you have to recharge it. This write-up will go you v the process of correctly recharging her air conditioning to acquire cool air blowing through your vents as soon as again.
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This article applies to the Ford F-150.
HVAC leaks space a typical issue in most vehicles, specifically when castle really begin to rack increase the miles. If you"ve knowledgeable symptoms like a lack of cooling, quick cycling of the compressor clutch (compressor is transforming on and off rapidly), or the clutch doesn"t engage at all, your refrigerant level is most likely lower than it demands to be. If over there is poor refrigerant in the system, the pressure can drop come the suggest where the device is unable to close the push cycling switch. Once you"ve tracked down and also repaired the leak in your system that caused the low refrigerant issue, it"s time come recharge, however it"s critical that you perform it the right way to continue to be legal and also avoid damaging the environment. Keep reading and we"ll go you v the process.
Materials NeededOne or two cans that R134a (with hose and also gauge attached)Assorted common size sockets/wrenches (optional)
Step 1 – Locate and also open the low pressure valve
The low press valve is located under the hood top top the passenger side, in the behind corner, tucked underneath one of two people the dryer cylinder or a fuse box, depending on which model truck friend have. There are two bolts that hold the dryer cylinder in ar on the side—remove the 2 bolts and also pull it up just sufficient to accessibility the low pressure valve. If holding the dryer cylinder out of the method with one hand, unscrew and also remove the low push valve with the other hand. If your is located under the fuse box, you have the right to simply remove it without having to disconnect anything.
Step 2 – Recharge the system
Connect the water tap from a have the right to of the refrigerant come the low press valve. Start the truck and turn her air air conditioning on high, and also make certain the vents space open. Keep in mind the press reading top top the valve, which must be at the very least 45 psi. If it"s listed below 45 psi, there isn"t sufficient refrigerant in the system and also it need to be recharged. Traction the manage or push the button on the refrigerant deserve to to begin filling the system, maintaining an eye on the gauge. Use secondary can if one isn"t enough. Fill until you reach around 55 psi, i beg your pardon is a for sure level that ensures friend aren"t overcharging the device (and causing some expensive damage). When full, turn off the truck and disconnect the hose. Change the valve cap and also any components you had actually to eliminate to gain access to the valve.
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