Question about 2001 Jeep Grand Cherokee

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Over heating on 2001 jeep cherokee i replaced the relay located under the light also temperature sensor (next the elctric fan motor.

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  • Zaraki May 11, 2010

    Have you replaced the thermostat?

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  • 154 Answers

Bad water pump maybe or thermstat is froze shut. maybe the cooling fans are not working.

Posted on Apr 23, 2010

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1 Answer

It is running hot. The fan is not coming on. The fan motor has been replaced and the Coolant Fan Relay is not bad. What next?


The one in charge of activating the fan at a determined temperature is the coolant temperature sensor (CTS), I think it's faulty and that's why the fan isn't working.

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Over heated , radiator fan not working


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May 23, 2010 | 2002 Jeep Grand Cherokee

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Cooling fan not kicking on causing the jeep to over heat. Replaced the termstat and temp sensor, on a 00 jeep grand cherokee.


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Jan 18, 2010 | 2000 Jeep Grand Cherokee

1 Answer

I have a 2001 Jeep Grand Cherokee that is overheating due to the fan not turing on. I have checked all of the wires (none pinched or broken), jumped the cooling fan, replaced the relay, checked the fuse...


have you checked the current with a test light? what about the temperature sensor? the fan will only come on when the temperature gets to a certain point.. try checking the temperature sensor, maybe plug came off, but you should get check engine light if that was the case. fan motor might have gone bad.

Aug 16, 2009 | 2001 Jeep Grand Cherokee

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Radiator fan not working replaced relay,temp switch and fuse fan works if hot wired it's on a 2001 jeep grand cherokee


Check the wiring from the relay to the fan motor, and check the wiring from the fuse block. Basically check all wires that supply power to the fan motor, use a volt meter. Fan Relay (behind headlight, under battery) on the 2001 GC 4.0L are a piece of ****, I change mine almost yearly. The problem is their location, a high heat area prone to the elements. I understand that 2002 and newer, the location was changed and the problem solved. Relay might close the circuit when cold or at reasonable temps, but might open a circuit when it heats up, causing the problem.

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I need to know what all has to be taken off, the easiest way, to replace a radiator fan motor for a 2001 grand cherokee?

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HI ,check, fuses, fan relay , temperature suitch located at cilinder head ,fan motor,( those are the most comon causes ) Good Luck

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