F 350 4WD Super Duty V8-6.4L DSL Turbo (2008)
11. NOTE: For 6.4L diesel vehicles, the 2 LH heater core and evaporator core housing nuts must be removed from below the vehicle.
Remove the 3 exterior heater core and evaporator core housing nuts.
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To install, tighten to 7 Nm (62 lb-in).
12. Remove the interior heater core and evaporator core housing nut.
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To install, tighten to 6 Nm (53 lb-in).
13. Remove the interior heater core and evaporator core housing bolt.
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To install, tighten to 7 Nm (62 lb-in).
14. Remove the heater core and evaporator core housing.
15. To install, reverse the removal procedure.
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Install new O-ring seals.
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Lubricate the refrigerant system with the correct amount of clean PAG oil.
16. Evacuate, leak test and charge the refrigerant system.
