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it means that your coolant sensor is bad and needs to be replaced. it can also be a bad or faulty wiring connection. make visual and manual checks and in spections on the wiring harness leading to and from the sensor which is located on the top of your water-pump houseing. the new sensor is a dealer part,and comes with a warrenty . I bought a new one and it was bad. how funny good luck.

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โˆ™ 2007-09-24 09:52:38
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Q: What does it mean when it says coolant sensor bad in a 1998 jeep grand Cherokee limited?
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