1999 Other Jeep Models Coolant Tem Gauge and Battery

1999 JEEP
116,185 MILES • 6 CYL • 2WD • AUTOMATIC
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MWEBSTER
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I took my car into a local garage and needed the battery cable and connector replaced due to short and poor battery operation. After driving 5 minutes the Coolant Temp. gauge went to the danger zone. I look under the hood and the battery was extremely hot. The next morning. I checked the radiator fluid and and reservoir and it was all okay. When at a light or the car is not in drive the gauge is in the middle. If I drive over 45 mph it creeps back into the danger zone.

The thermostat is not the issue because it has been replaced yet the issue continues.

I took the vehicle back to the garage and they are still working on it 24 hrs later. Could you help me help them.

The follow-up is that it was determined to be the water pump. Could somepne please explain how the water pump ineffectiveness created the high gauge temp and the battery to be hot?
Jun 28, 2008 at 5:44 AM
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MERLIN2021
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Water pump hase vanes, or impellers that can disolve over time, reducing the ability to pump enough water with heavy demand on the engine, why the battery is hot? Got me on that one! Unless the radiator or hose is near it.
Jun 28, 2008 at 10:59 AM