Make a container ready to discharge the refrigerant.
How to drain oil from car ac.
Put all the oil emptied out of the compressor.
It can be connected with your car s ac service port and give you a reading based on the purity status.
In this case it s seven ounces of pag oil.
After the oil has been put back in the compressor you wanna cycle the compressor by spinning the clutch plate possibly three or four revolutions.
The federal law also prohibits you from freeing the refrigerant in the air.
You will require a wrench and a hex key for the.
All you need to do is fill the new ac compressor with exactly the same amount that you drained out of the old ac compressor.
Putting the wrong oil in your compressor will damage it.
However the easiest way to tell exactly how much oil needs to be in your specific ac compressor is to drain the old compressor and measure the amount of oil that comes out.
For example your ac compressor may require r134a refrigerant oil rather than pag 46 oil.