Removal Procedure
- Disconnect the battery negative cable.
- Remove the hood.
- Remove the right fender.
- Remove the right wheel panel.
- Remove the evaporator tube from the evaporator.
- Remove the accumulator.
- Remove the evaporator core assembly heat shield.
- Remove the electrical connectors/harnesses, as necessary.
- Remove the blower motor resistor.
- Remove the heater core case to the bulkhead mounting bolt.
- Remove the evaporator and the blower module screws and the nuts.
- Remove the acoustic barrier, if equipped.
- Remove the lower right heater core case mounting bolts.
- With the aid of an assistant, lightly pull the lower right corner of the heater case away from the bulkhead (4.3L engine only).
- Remove the evaporator core assembly from the vehicle.
- Disassemble the evaporator core case sections.
- Remove the evaporator core.
Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.
Refer to Hood Replacement in Body Front End.
Refer to Fender Replacement -- Right in Body Front End.
Refer to Wheel House Panel Replacement -- Right in Exterior Trim
Refer to Evaporator Tube Replacement .
Refer to Air Conditioning Accumulator Replacement .
Refer to Blower Motor Resistor Replacement .
Refer to Blower Motor Resistor.
The bolts are located on the lower right side of the instrument panel on the 4.3L engine only.
Installation Procedure
- Install the evaporator core.
- Assemble the evaporator core case sections.
- With the aid of an assistant, pull the lower right corner of the heater case away from the bulkhead.
- Install the evaporator core assembly into the vehicle.
- Install the lower right heater core case mounting bolts (4.3L engine only).
- Install the acoustic barrier, if equipped.
- Install the evaporator core assembly screws and the nuts.
- Install the heater core case to the bulkhead mounting bolt.
- Install the blower motor resistor.
- Connect the electrical connectors/harnesses, as necessary.
- Install the evaporator core assembly heat shield.
- Install the accumulator.
- Install the evaporator tube to the evaporator.
- Install the right front wheelhouse panel.
- Install the right fender.
- Install the hood.
- Add refrigerant to the system.
- Connect the battery negative cable.
- Inspect the system for leaks.
The bolts are located in the lower right side of the instrument panel.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Tighten
| • | Tighten the bolts and the stud to 4.5 N·m (40 lb in). |
| • | Tighten the screw and the nuts to N·m (22 lb in). |
Refer to Blower Motor Resistor Replacement .
Refer to Air Conditioning Accumulator Replacement .
Refer to Evaporator Tube Replacement .
Refer to Wheelhouse Panel Replacement -- Right in Exterior Trim.
Refer to Fender Replacement -- Right in Body Front End.
Refer to Hood Replacement in Body Front End.
Refer to Refrigerant Recovery and Recharging .
