Durango 2WD V8-4.7L (2008)
Evaporator Core: Service and Repair
Rear A/C Evaporator - Installation
INSTALLATION
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 system See: Service and Repair/Refrigerant Oil Level.
NOTE: If only the A/C evaporator is being replaced, add 30 milliliters (1 fluid ounce) 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 opened. Failure to replace the
rubber O-ring seals and metal gaskets could result in a refrigerant system leak.
1. Carefully position the rear A/C evaporator (6) into the top of the rear HVAC housing (7).
2. Remove the tape or plugs from the opened rear evaporator and extension tube fittings and all rear expansion valve ports.
3. Lubricate new rubber O-ring seals with clean refrigerant oil and install them on the evaporator tube and extension tube fittings. Use only the
specified O-rings 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.
4. Install the rear A/C expansion valve (4) between the rear A/C evaporator tubes (2) and the rear extension tube tapping block (5).
5. Install the two bolts (3) that secure the rear A/C expansion valve between the rear A/C evaporator tubes and the rear extension tube tapping block.
Tighten the bolts to 11 Nm (97 in. lbs.).
6. Install a new insulator (1) around the rear A/C evaporator tubes.
7. Position the rear air inlet housing (6) onto the rear HVAC housing (1).
8. Install the screws (5) that secure the rear air inlet housing to the rear HVAC housing. Tighten the screws to 2 Nm (17 in. lbs.).
