F 350 4WD Super Duty V10-6.8L VIN Z CNG (2003)
10. Remove the 8 screws, release the 3 retaining tabs, and remove the evaporator core cover.
11. Remove the evaporator core.
INSTALLATION
1. To install, reverse the removal procedure.
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If a new evaporator is to be installed, lubricate the refrigerant system with the correct amount of clean PAG oil or equivalent.
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Install new O-rings lubricated with clean PAG oil or equivalent.
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Clean and lubricate the heater hoses with coolant hose lubricant or plain water only, if needed.
2. Evacuate, leak test, and charge the refrigerant system.