[SouthernRodder]

There is a vacuum canister behind the drivers side front fender on the firewall on my firebird. I think that is operates the factory vents?????? Maybe?? Car is a factory air car BUT I am installing a vintage air unit in the upcoming weeks. I was wandering what this vacuum canister is for and if by installing vintage air if I could remove it. If it does controll the vents I am not really worried because it will be either air on wide open, windows down, or heat on.
Any help or any comments would be greatly appreciated.

[Bryan59EC]

Might want to check if the power brake booster is connected to it???
Some vehicles had a canister for that purpose.

Not sure---just a thought

Bryan

[SouthernRodder]

No its not for the brake booster, but thanks for reply. It has a vacuum hose that enters through the firewall and into the interior, if i'm not mistaken it runs towards my a/c controls.

[75gmck25]

That sounds like the same setup used in my pickup, except that on the pickup there is space to mount the canister near the firewall.

If you really don't need the canister for your vintage air setup, you can follow the line back to the intake manifold and either plug it or change to a different fitting. In most cases there is a large line connected to a fitting on the intake manifold, and then a junction that T's out to multiple lines. Mine connects to the vacuum line for the HVAC and a line to the TH350 modulator.

Bruce