Question about 2000 Jeep Grand Cherokee

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My jeep is over heating. Already replaced the

My jeep is over heating. Already replaced the thermostat. Didn't fix the problem. Someone is telling me it is a bad serpentine belt. The belt looks fine to me. They said that it does not matter what it looks like it is probably still bad. Could this be true? Guess I should state that it is not fully overheating. At times it gets to about 240 under stress (Excessive acceleration or long hills or running the A/C) and then cools down again.

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  • blueextc3221
    blueextc3221 May 11, 2010

    Water pump failing.

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  • Jeep Master
  • 2,984 Answers

From the last portion about your drving conditions, it is normal operations....it gets hot, especially going up hills with the A/C on. Sometime the water pumps start to weaken but also a clogged radiator, slowing the flow of cooled coolant through your motor or even through the radiator....check to be sure you have the proper level of coolant also.

Posted on Jul 23, 2009

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