F 250 4WD Super Duty V10-6.8L VIN Z CNG (2003)
Housing Assembly HVAC: Service and Repair
REMOVAL
1. Remove the instrument panel. Refer to: Body and Frame, Interior Trim, Dashboard/Instrument Panel, Service and Repair, Removal and
Installation, See: Body and Frame/Interior Moulding / Trim/Dashboard / Instrument Panel/Service and Repair/Removal and Installation
2. Drain the cooling system.
3. Disconnect the heater water hoses from the heater core.
4. Disconnect the vacuum harness connector.
5. Remove the lower retaining nuts.
6. Remove the upper retaining nuts and remove the plenum chamber.
