Heater Core Replacement. Chevrolet Joy 2008

For 1990-2009 cars

### Removal Procedure

1. Raise the hood.

Caution: Refer to Battery Disconnect Caution in the Preface section.

2. Disconnect the negative battery cable.
3. Remove the instrument panel carrier assembly from the vehicle. Refer to Instrument Panel Carrier Replacement .
4. Remove the heater/air distribution case from the vehicle. Refer to Heater Assembly Replacement .
5. Remove the screws from the heater/air distribution case assembly.
6. Remove the linkage lever. Note the position of all the levers to facilitate reassembly.
7. Remove the screws that secure the heater core cover.
8. Slowly separate the lower heater core cover from the rest of the assembly. Retain the sealant.
9. Remove the screw and the bracket clamp that secure the heater core lines to the case.
10. Remove the spring clamp that secures the heater core body to the case.
11. Remove the heater core from the case.

### Installation Procedure

1. Install the heater core into the case.
2. Secure the heater core lines to the case with the retaining bracket clamp and the screw.
3. Install the heater core body with the retaining spring clamp.
4. Install the heater core cover.
5. Install the retaining screws.
6. install the linkage lever onto the cover post with the screw.
7. Confirm proper operation of the actuating levers for the heater/air distribution case doors.
8. Install the screws from the heater/air distribution case assembly.
9. Install the heater/air distribution case. Refer to Heater Assembly Replacement .
10. Install the instrument panel carrier assembly. Refer to Instrument Panel Carrier Replacement .
11. Fill the cooling system. Refer to Cooling System Draining and Filling .
12. Connect the negative battery cable.