General - Subaru 2002 Impreza Service Manual

GENERAL
Cooling
1.
General
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The engine cooling system consists of a down-flow radiator which features high heat-dissipation
performance, an electric-motor-driven fan, a water pump, a thermostat, and an engine coolant
temperature sensor.
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The engine coolant reservoir tank is designed to minimize the need for replenishing coolant.
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The ECM controls the operation of the radiator main fan and sub fan depending on the signals
from the engine coolant temperature sensor, vehicle speed sensor and A/C switch.
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