F 150 Super Crew 4WD V8-5.4L Prop SOHC VIN Z (2003)
6. Disconnect the vacuum line.
7. Remove the plenum chamber top.
1
Remove the 15 screws.
2
Remove the plenum chamber top.
8. Remove the blend door assembly from the case.
9. Remove the heater core.
INSTALLATION
1. To install, reverse the removal procedure.
^
Lubricate the coolant hoses with coolant hose lubricant or plain water only, if needed.
