How to Add Refrigerant Oil?


Check the valves on the front of the gauge set to make sure they are closed. Attach the air-conditioning gauge set to the service ports. The blue hose goes to the low-pressure service port, and the red hose goes to the high-pressure port. Generally, the low-pressure port is on the accumulator (a round cylinder-shaped component) near the firewall, and the high-pressure port is on the A/C line connecting the condenser (the component in front of the radiator) and the evaporator (behind the firewall). Consult your service manual for exact location. Start the engine and set the A/C controls for max air conditioning. Set the blower speed for medium speed. The pressure differential is what allows the addition of oil through the low side port. Attach the can tap supplied with the gauge set, and attach a can of oil charge to the can tap. Turn the thumbscrew all the way in and all the way out to open the can. Open the blue valve on the gauge set to allow the pressurized oil charge into the system. Turn off the engine, and allow the pressures in the system to stabilize before disconnecting the hoses from the service ports. This prevents damage to the service ports.
Q&A Related to "How to Add Refrigerant Oil?"
1. Lift the hood of the Chevy Tahoe and prop it open. Identify the low-pressure air conditioning recharge valve, which is typically behind and above the alternator. 2. Connect the
you can buy little cans that have 2oz of freon in them and 2oz of oil -add like you was charging system-or-when you evacuate system and while it is still under vacuum, lower your
YOU DO NOT. you call a company who specialise in HVAC and have their licensed technicians come and do it.
1. Open the engine compartment cover and locate the hydraulic trim pump in the lower rear area of the engine compartment. The unit will have two power trim hoses connected to it.
1 Additional Answer Answer for: how to add refrigerant oil
How to Add Refrigerant Oil
It is normal to lose a small amount of refrigerant oil from the air conditioning system over time. Slight leaks around seals during cold weather often cause loss of refrigerant as well as refrigerant oil. Add oil to the system when you are replacing... More »
Difficulty: Moderate
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