RAM 3500 Chassis Cab Truck 2WD L6-6.7L DSL Turbo (2010)
7. Remove the two nuts (3 and 7) that secure the HVAC housing to the passenger compartment side of the dash panel (1).
8. Carefully pull the right side of the HVAC housing rearward to gain access to the front of the air inlet housing.
9. Remove the recirculation door actuator (1) from the air inlet housing (2) and disconnect the HVAC wire harness (4) from the actuator.
10. Remove the two screws (3) that secure the rear of the air inlet housing to the top of the HVAC housing (5).
11. Release the two retaining clips (1) that secure the front of the air inlet housing (2) to the top of the HVAC housing (3) and remove the air inlet
housing.
NOTE: If the foam seal on the air inlet housing is deformed or damaged, it must be replaced.
12. If required, disassemble the air inlet housing See: Overhaul/HVAC Housing - Disassembly.
HVAC Housing
HVAC HOUSING ASSEMBLY
CAUTION: Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system See: Service and Repair/Refrigerant Oil Level
. Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious
A/C compressor damage.
NOTE: 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 systemSee: Service and Repair/Refrigerant Oil Level .
NOTE: If the A/C evaporator is being replaced, add 60 milliliters (2 fluid ounces) of refrigerant oil to the refrigerant system. Use only
refrigerant oil of the type recommended for the A/C compressor in the vehicle.
NOTE: Replacement of the refrigerant line O-ring seals and gaskets is required anytime a refrigerant line is disconnected. Failure to replace
the rubber O-ring seals and metal gaskets could result in a refrigerant system leak.