Rear

INSTALLATION

CAUTION: Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system Refrigerant Oil Capacity . 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 Refrigerant Oil Capacity .

NOTE: Replacement of the refrigerant line O-ring seals is required anytime a refrigerant line or expansion valve is disconnected. Failure to replace the rubber O-ring seals could result in a refrigerant system leak.





1. Remove the tape or plugs from the rear evaporator tube and extension line fittings and all rear expansion valve ports.
2. Lubricate new rubber O-ring seals with clean refrigerant oil and install them onto rear evaporator tube and extension line fittings. Use only the specified O-rings as they are made of a special material for the R-134a refrigerant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
3. Install the rear A/C expansion valve (2) onto the rear A/C evaporator tube tapping block (4).
4. Connect the rear evaporator extension lines (3) to the rear A/C expansion valve and install the two retaining bolts (1). Tighten the bolts to 11 Nm (97 in. lbs.).





5. Position the rear heater core tube and evaporator line flange (2) to the outboard side of the rear heater-A/C housing (5) and engage the retaining tab (1). Make sure the tab is fully engaged to the housing.
6. Install the screw (4) that secures the rear heater core tube and evaporator line flange to the inboard side of the rear heater-A/C housing. Tighten the screw to 2 Nm (17 in. lbs.).

NOTE: If the foam seal for the flange is deformed or damaged, the seal be replaced.

7. Carefully install the foam seal (3) onto the rear heater core tube and evaporator line flange.
8. Install the rear heater-A/C housing Front HVAC Housing Installation.