RAM 2500 Truck 2WD L6-6.7L DSL Turbo (2010)
26. Remove the tape or plugs from the evaporator tube fittings.
27. Lubricate new O-ring seals with clean refrigerant oil and install them onto the evaporator tube fittings. Use only the specified O-ring seals as they
are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
28. Install the A/C expansion valve (5) onto the evaporator tube tapping block (3).
29. Install the two bolts (4) that secure the A/C expansion valve to the evaporator tube tapping block. Tighten the bolts to 11 Nm (97 in. lbs.).
NOTE: If the foam seal is deformed or damaged, the seal must be replaced.
30. Install the foam seal (1) onto the HVAC housing (2).
31. Connect the HVAC wiring harness (1) to the recirculation door actuator (2), power module or blower resister (3) (depending on application) and
the blower motor (4).
32. Engage the HVAC wiring harness to the two retaining clips (5). Make sure the wire harness is fully engaged to the retaining clips.
33. Install the HVAC housing See: Removal and Replacement/HVAC Housing - Installation.
NOTE: If the heater core is being replaced, flush the cooling system See: Engine, Cooling and Exhaust/Cooling System/Service and Repair .
34. If the A/C evaporator is being replaced, add 60 milliliters (2 fluid ounces) of refrigerant oil to the refrigerant system. When replacing multiple A/C
system components, refer to the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system See: Service
and Repair/Refrigerant Oil Capacity. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.