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The light is not a coolant light, it is a temperature light which comes on when the temperature of the coolant is above the limits. In other words you engine is overheating. Can be defective thermostat, bad water pump, clogged radiator, or blown head gasket.

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14y ago
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15y ago

Either the coolant is low, or the level sensor has malfunctioned.

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Q: Why does my1999 jeep Cherokee coolant light come on not out of fluid?
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