Question about 1997 Jeep Grand Cherokee

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Collant sensor bad

Message center reads coolant sensor bad

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This problem is frecuently in this models, check the levels, check and clean the plug connections and Reset your ECU.

Also, can reviewthe #8 wire in a ribbon connector, the factory that made the VIC's use awave soldering method, and the #8 pin (which is the coolant sensorground pin -IIRC it's pink- will have a cold solder joint.

If you cansee faults in this connections, it takes about 15 minutes to get the VICout of the car, and if you cansolder, another 5 to fix the problem. I'dadvise re-soldering all the connections, while you're in there.

If the problem stay there, just change your coolant sensor.

Good luck, and remember rated this help.

Posted on Oct 09, 2009


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