A/C vacuum canister

[JD79]

Hi guys,

I am looking into the A/C system parts.  Is the black vacuum canister below the charcoal canister on the passenger side a part that you would replace when you are completely rebuilding a system? 

I would like to keep the AC system as original as possible. The shape of the original canister looks slightly different than the aftermarket one from Original Air. 

Is there an easy way to check if it works 100% or needs replacing?

 

[Hemikiller]

If it'll hold vacuum, I wouldn't bother replacing it.

 

[rackerm]

Hi guys,

I am looking into the A/C system parts.  Is the black vacuum canister below the charcoal canister on the passenger side a part that you would replace when you are completely rebuilding a system? 

I would like to keep the AC system as original as possible. The shape of the original canister looks slightly different than the aftermarket one from Original Air. 

Is there an easy way to check if it works 100% or needs replacing?

To check it for a leak. Plug the one hole and using a vacuum pump (your average brake bleeder hand pump) pump up the vacuum and see if it holds about 25 lbs on the gauge. Make sure your pump and hoses are not leaking.  More often if you have a vacuum leak somewhere in the A/C vacuum lines, it will be in one of the 3 actuators on the airbox, or the actuator on the water control valve on the heater hose line, or the heat - A/C control selector switch on the dash.

 

[Don C]

You also need to make sure the check valve is working.

 

[JD79]

Thanks for the advise everyone!