F 150 Heritage 4WD Pickup V8-5.4L SOHC VIN Z Bi-fuel (2004)
7. Disconnect the A/C vacuum hose from the A/C vacuum check valve.
8. Remove the plenum chamber nuts.
9. Remove the plenum chamber.
INSTALLATION
1. To install, reverse the removal procedure.
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Lubricate the coolant hoses with plain water only, if needed.
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Install new O-ring seals lubricated in clean mineral oil.
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Lubricate the refrigerant system with the correct amount of clean PAG oil.
