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Home >> Volvo >> 1985 >> 245 GL, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Idle Speed Control System >> Operation >> Coolant Temperature Sensor
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Coolant Temperature Sensor

The coolant temperature sensor provides an electrical impulse to the electronic control unit at low coolant temperatures. At low temperatures, the electronic control unit activates the air control valve to provide more air to increase the engine speed.

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