Grand Voyager L4-2.4L DOHC (1996)
Rear Heater Core
1. Isolate and disconnect lines from heater core.
2. Remove heater core retaining screws.
3. 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 over-all 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 fill cap. Therefore the heater core will not gravity fill to level. To thermal cycle the vehicle, 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:
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Vehicle at room temperature.
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Engine is brought up to operating temperature.
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Front unit is OFF, temperature slides are at full HEAT position.
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Engine is at idle.
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With rear blower motor ON HIGH
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Discharge air temperature, measured at the dual register located on the C-pillar base, is between 57°C to 62°C (1350 and 1450 F).
