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Front HVAC Housing






HOUSING-HVAC ASSEMBLY

CAUTION: Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system 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: 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: When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system Refrigerant Oil Level .

NOTE: Replacement of the refrigerant line seals is required anytime a refrigerant line is disconnected. Failure to replace the rubber and metal seals could result in a refrigerant system leak.





1. If removed, install the insulator (3) over the A/C evaporator (2). If the insulator is deformed or damaged, it must be replaced.
2. Install the A/C evaporator into the lower half of the HVAC housing (4). Make sure that the evaporator drain within the HVAC housing is clean and unrestricted and that the insulator and evaporator are properly positioned in the housing.
3. Install the tapping block (1) onto the evaporator tubes.





4. Install the upper half of the HVAC housing (3) onto the lower half of the HVAC housing (4).
5. Install the fifteen screws (1) that secure the two halves of the HVAC housing together. Tighten the screws to 2.2 Nm (20 in lbs.).
6. Install the three metal retaining clips (2) that secure the two halves of the HVAC housing together.





7. Remove the tape or plugs from the evaporator tube fittings.
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 (3) onto the evaporator tube tapping block (2).
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 blower motor (2) onto the HVAC housing (1). Tighten the screws to 2.2 Nm (20 in. lbs.).
12. Install the blower motor resistor or power module (3), depending on application. Tighten the screws to 2 Nm (17 in. lbs.).





13. Install the air inlet housing (1) onto the HVAC housing (2) HVAC Housing - Installation.
14. Install the air distribution housing (3) onto the HVAC housing HVAC Housing - Installation.
15. Install the Passive Entry Module (PEM) onto the HVAC housing Passive Entry Module - Installation.
16. Install the HVAC housing assembly HVAC Housing - Installation.
17. 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, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system Refrigerant Oil Level. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.

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