Grand Cherokee 2WD V8-4.7L Flex Fuel (2008)
7. Remove the tape or plugs from the evaporator tube fittings and all of the expansion valve ports.
8. Lubricate new rubber O-ring seals with clean refrigerant oil and install them on the evaporator 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.
9. Install the A/C expansion valve (2) onto the evaporator tube tapping block (3) located at the front of the HVAC housing (4).
10. Install the two bolts (1) that secure the A/C expansion valve to the evaporator tube tapping block. Tighten the bolts to 11 Nm (97 in. lbs.).
11. Install the evaporator temperature sensor (2) See: Evaporator Temperature Sensor / Switch/Service and Repair/Installation.
12. Install the blower motor resistor or power module (4), depending on application See: Blower Motor Resistor/Service and Repair/Installation or
See: Control Module HVAC/Service and Repair/Blower Motor Power Module - Installation.
13. Install the blower motor (3) See: Blower Motor/Service and Repair/Installation.
14. Install the HVAC wiring harness (1) onto the HVAC housing (5) and engage the two wire harness retainers to the housing.
15. Connect the HVAC wire harness to the evaporator temperature sensor and blower motor resistor or power module (depending on application).
16. Connect the blower motor wire harness to blower motor resistor or power module (depending on application).
