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Need to check to make sure your coolant level is ok. Do you have a gauge? Is it running hot?

Ans: The level sensor in these cars is sensitive. Typically adding a few ounces of coolant to the reservoir until the level is just above the upper hose will solve the issue. If you still have a coolant light, the sensor has failed. It is easy to replace.

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Q: What causes the cooling system light to come on in a 1998 Mercury Mystique?
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