F 150 Heritage 4WD Pickup V8-5.4L CNG VIN M (2004)
5. Disconnect the vacuum line.
6. Remove the plenum chamber top.
1
Remove the 15 screws.
2
Remove the plenum chamber top.
7. Remove the blend door assembly from the case.
8. Remove the heater core.
INSTALLATION
1. To install, reverse the removal procedure.
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Lubricate the coolant hoses with plain water only, if needed.
