What I mean is this: Right now the hose for the AC unit coming off the main line goes into the vacuum cannister on the wheel well but the outlet does not have a hose coming off the cannister to the firewall. Won't the vacuum system have an opening since the outlet out of the cannister isn't plugged? Should I block this off somehow, such as inserting a screw or something into it. Or should I connect the ac hose to the firwall even though the ac doesn't work?
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