Prevent Leakage by Replacing A/C O-Rings
It's unreasonable to sweat your way through a destination just because of your car's broken air conditioning system. When your vehicle's A/C leaks refrigerant, it becomes less efficient or even not efficient at all. That is why A/C O-rings exist ? they prevent refrigerant leaks in your car's A/C system. It is advisable to replace your A/C O-rings once they get worn out, avoiding major repairs which would definitely drain your pocket.
Here are the tools you'll need to repair your car's leaking A/C system:
Difficulty level: Easy
Tools you'll need:
- Car's repair manual
- Line wrench set
- O-ring pick
- O-ring seals
Step 1:Park your car and open the hood to start inspecting the A/C system. Look for the A/C service valves with the help of your vehicle's manual. These valves are typically found in the compressor.
Step 2: Each valve is connected to an A/C hose. Locate both the high and low pressure A/C hoses connected to the valves. Attach the hoses from the manifold gauges to the service valves.
Step 3: Engage the vacuum pumps. Evacuate the A/C system until the pressure gauge on the manifold gauges display 0 psi. Turn off the vacuum pump.
Step 4: Find the condenser and inspect it. Two hoses are connected to the condenser ? the low-pressure hose and the high-pressure hose. Use a line wrench to loosen and remove these hoses.
Step 5: Place the O-ring pick beneath each hose, one line at a time. Poke the worn out O-ring from the groove in each of them. Put new O-rings on each hose and roll them until they sit exactly where the old O-rings were attached.
Step 6: Reattach the high and low-pressure hoses to the condenser using a line wrench.
Step 7: Recharge the A/C system with a refrigerant. Connect a refrigerant can to the yellow hose of the manifold gauges. Open the valve on the yellow hose and recharge it to its recommended pressure. Close the valve on the low-pressure hose when the pressure gauge reads between 25 and 40 psi. Likewise, close the valve on the high-pressure hose when the pressure gauge reads between 225 and 250 psi.
Refrigerant is a toxic substance that can harm your skin. We recommend you consult an expert when recharging your A/C system.