Plenum Chamber

Plenum Chamber









Removal and Installation

1. Remove the instrument panel. For additional information, refer to Instrument Panel and Console Instrument Panel.

2. Drain the engine coolant. For additional information, refer to Engine Cooling Cooling System Draining, Filling and Bleeding.

3. Release the 2 heater hose clamps and disconnect the heater hoses at the heater core.

4. Detach the plenum chamber vacuum harness from the plenum chamber.

5. Disconnect the temperature blend door actuator electrical connector.

6. Disconnect the 2 air suspension control module electrical connectors.

7. Remove the 3 plenum chamber nuts.

8. NOTICE: Do not excessively cut the rear footwell duct. Make sure to only cut the rear footwell duct to the point that allows the heater floor duct to be removed with the plenum chamber as an assembly.

Position back the carpet from the plenum chamber. Cut each side of the rear footwell duct and bend back the duct.





9. Remove the in-vehicle temperature sensor aspirator hose (if equipped).





10. Remove the plenum chamber.

11. NOTE: Make sure to sufficiently seal the rear footwell duct to the heater outlet floor duct.

To install, reverse the removal procedure.

- Clean and lubricate the coolant hose with plain water only if needed.

- Close the rear footwell duct around the heater outlet floor duct, install a tie strap and position back the carpet.

12. Fill the engine cooling system. For additional information, refer to Engine Cooling Cooling System Draining, Filling and Bleeding.