Hey everyone. I just replaced my expansion valve on my 96 4runner and have everything hooked back up with a vacuum pulled. I am a hvac guy, but since I did not replace the compressor I do not know how much oil I should add to the system. I have a 1oz. Do you think that would be enough? Thank you everyone for your information.
You don't need to add any oil. If you have access to a charging scale charge the system by weight. Even though its got a expansion valve its really finicky about the charge and very easy to end up with a couple OZ too many or too little when charging with gauge/eyeball method.