Overhaul

DISASSEMBLY
Use this procedure if any or all of the following items require service:
- Heater core
- Evaporator
- HVAC housing

The HVAC housing must be removed from the vehicle before beginning with this procedure.

Fig.9 HVAC Housing Air Distribution Foam Seals:

1. Separate the air distribution outlet foam seals at the case parting line.

Fig.10 Common Blend-Air HVAC (Heating, Ventilation, Air Conditioning) System - Typical:

2. Remove the evaporator lines foam seal, and heater core tubes foam seal from the unit.
3. Remove the retaining clips and screws that hold the upper and lower housings together.
4. Separate the two halves of the housing.
5. Lift the heater core and evaporator out of the case.

ASSEMBLY
1. Install the heater and evaporator cores into the case.
2. Place the two halves of the heater-a/c housing together.
3. Install the retaining clips and screws that hold the upper and lower case housings together.
4. Install the evaporator lines form seals and heater core tube seals to the case housing.
5. Install the air distribution outlet foam seals at the case parting line.