Rear

REMOVAL
1. Remove the lower right quarter trim panel.

Heater Core Lines:

2. Isolate and disconnect lines from heater core.
3. Remove heater core retaining screws.
4. Carefully pull the heater core and tubes up and straight out of the unit.

INSTALLATION

Filling Heater Core:

For installation, reverse the above procedures. Prefill the heater core. Test for leaks and overall performance.

NOTE: If the heater core was emptied and was not prefilled, it is necessary to thermal cycle the vehicle TWICE. The heater core is positioned higher than the radiator till cap. Therefore the heater core will not gravity fill to level. To thermal cycle the vehicles it must be operated till the thermostat opens, then turned off and allowed to cool. In order to verify that the auxiliary unit is filled completely, the following procedure can be used:

- Vehicle at room temperature.
- Engine is brought up to operating temperature.
- Front unit is OFF, temperature slides are at full HEAT position.
- Engine is at idle.
- With rear blower motor ON HIGH
- Discharge air temperature, measured at the dual register located on the C-pillar base, is between 57°C to 62°C (135° and 145°F).