How to purge A/C system.

[R34P3R]

I bought a vacuum and all the coolant I need to restore my trucks a/c. I have no idea how to do a complete purge. Anybody have a step be step on how to do that?

[LeoS41280]

Do you have a manifold set also?

[R34P3R]

I do have it as well.

[LeoS41280]

Is the system empty?

[R34P3R]

Replaced the condenser. That's it.

Some of the fluid came out but not all of it, I'm sure.

[R34P3R]

I'm trying to figure out how to get the rest of it out so that I can do the vacuum and put the new refrigerant in.

[anumber1]

If it is just the compressor oil in it, some residual oil left in the system is fine. If you have left the system open for a long time, you don't want any trash floating around in there and a flush of the evaporator and condenser with a/c flush solvent and compressed air may be in order.

 

If it's just oil, it will be just fine with some residual oil left in the system.

 

Replacing the receiver /dryer should be on the list of things to replace however if the system has been open or discharged for a while.