What connects to the intake manifold where the throttle body assembly mounts to the intake manifold?

2006 CHEVROLET MONTE CARLO
178,368 MILES • 5.3L • V8 • 2WD • AUTOMATIC
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RONALD DEVOLD
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There are two and I know one goes to the brake booster, but where does the other one goes to? I bought the car that way.
Jun 1, 2022 at 5:29 AM
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STRAILER
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There is a vacuum line the goes from the valve body to the brake booster. Below are the instructions that show the line along with how to remove the intake manifold and reinstall in case you need it. Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.
Jun 1, 2022 at 12:34 PM
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RONALD DEVOLD
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Yes, I understand that but in the front part of the intake manifold there are two connections.
I have attached a pic of the manifold. As you can see, the one on the right goes to the brake booster. I need to know what is attached to the other one.
Jun 14, 2022 at 11:32 AM
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STRAILER
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It looks like that goes to the EVAP canister control solenoid, here is a diagram so you can see. Check out the diagrams (below). Please let us know what happens.
Jun 15, 2022 at 10:27 AM
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RONALD DEVOLD
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The EVAP canister control solenoid is connected to the throttle body.
Jun 23, 2022 at 7:51 AM
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STRAILER
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Do you have any vacuum lines that are lose under the hood, maybe it was just a plugged port?
Jun 24, 2022 at 9:24 AM
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RONALD DEVOLD
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No.
Jun 27, 2022 at 10:15 AM
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STRAILER
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I would plug the port and see what happens.
Jun 28, 2022 at 10:55 AM