2000 Cadillac Catera: Heater control Valve Vacuum Line?

The Exact location for Vacuum line going through heater control valve.

It goes thru the firewall to the recirculation actuator vacuum solenoid on the hvac housing. you can access it by removing the glove box.

See the diagram shown below:----


The vacuum line tees off. one end to the recirculation actuator vacuum solenoid and the other end to the vacuum tank underneath the passenger side air inlet grille.

For more help see below,here is the vacuum diagram for it:



This details will help.
Thanks.

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