THERMOSTAT [SKYACTIV-G 1.5, SKYACTIV-G 2.0]

id0112i1003000

Purpose, Function

• When the engine coolant temperature is low, the thermostat blocks the engine coolant passage between the radiator and engine. As a result, faster engine warm-up is promoted because engine coolant cycles without passing through the radiator.

Construction

• The thermostat is located on the water pump.

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• The thermostat has the following parts:

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• The jiggle pin facilitates the air bleeding in the engine coolant passage when engine coolant is supplied.

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Operation

1. When the engine coolant temperature is low, the thermostat valve closes and engine coolant circulates without passing through the radiator.

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2. When the engine coolant temperature is 86.5—89.5°C {188—193°F}, the thermostat valve starts to open and the engine coolant passed through the radiator flows to the engine.

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