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


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2011-09-13 22:25:04
2011-09-13 22:25:04

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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You can recharge your 1998 Mercury Mystique air conditioning system through the low pressure port. You can find the low pressure port on top of the air conditioning compressor.

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There is no need to do this normally.

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