LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Vacuum line from canister under coolant overflow bottle

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Old 11-10-2015, 05:47 AM
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Default Vacuum line from canister under coolant overflow bottle

As I backed the car in the garage I saw a vacuum line dragging the floor and followed it up to a canister under the coolant overflow bottle. It was the only line going in or out, and I can't remember what this is. I pulled the hose off and didn't take off the canister, what is it?
Old 11-10-2015, 06:15 AM
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HVAC vacuum canister is located up there.
Old 11-10-2015, 09:03 AM
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Perfect, so garbage.
Old 11-10-2015, 10:32 AM
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Originally Posted by bufmatmuslepants
Perfect, so garbage.
Unless you need it for your dash vacuum controls or leave it dangling open as a vacuum leak.
Old 11-10-2015, 04:34 PM
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No HVAC and I plugged everything else from the intake.



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