SECTION 50 - CAB CLIMATE CONTROL
50-4
Heater Core, Shutoff Valve and Fan Assembly
Access
To access the heater core and/or fan assembly, the
rear light bar, 1, (if equipped with lights) and top heat-
er cover, 2, must be removed. Remove the heater
cover mounting screws, 3, to remove the cover and
light bar together.
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2
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Heater Core Replacement
1. Drain the cooling system enough to drain the
coolant from the core, about 2 liters (2 quarts).
2. Remove the heater hose clamps, 1, from the
heater core, remove the hoses from the core and
cap hoses.
3. Remove the heater core retaining hardware, 2,
and remove the core from the heater support.
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Heater Shutoff Valve Replacement
1. Drain the cooling system enough to drain the
coolant from the core, about 2 liters (2 quarts).
2. Remove the electrical connector,1.
3. Remove the heater hose clamps, 2, from the
heater shutoff valve and remove the hoses from
the valve and cap hoses.
4. Remove the heater shutoff valve securing hard-
ware, 3, and remove the valve.
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2
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