Question about Jeep Grand Cherokee

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Think i need to replace coolant fan...how do i do that??

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  • jond_12866 May 25, 2010

    thanks for the info! you guys rock!

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  • Jeep Master
  • 19,396 Answers

Hi.

Procedure is quite simple.

  • Disconnect battery negative cable and set it apart.
  • Disconnect the electrical connector to fan.
  • Undo the bolts that hold the top fan housing and fan assembly (Radiator Shroud).
  • Remove Radiator Shroud housing this will come out with the fan.
  • Install the new fan performing operations in reverse order.

think i need to replace - bcccffc.gif


Before replacing the fan, ensure that the fan is faulty. Read volts at fan contacts or jump the fan wiring to energize the fan directly.

If the fan is OK, then the fault is either thermostat or fan relay.Ensure you have tested the 15A fuse in the junction block and the 40A fuse in the Power Distribution Center (PDC).

Here location of the fan relay:

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Regards.

Ginko.

Posted on May 25, 2010

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I am thinking you are on the right track. A noisy, wobbly fan has to be replaced and replacing the thermostat could reduce the fan speed as the problems are interrelated.

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Fan relay - this tells the fan to turn on when the AC is turned on - $50 part DIY
Thermostat - should be in the front of the engine on top with hose running to it - $9 part DIY
Radiator Fan shot - u can replace the fan motor for about $100 DIY
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While the engine is running and warmed up, lift the hood and listen or look to see if your radiator fan is running (the fan should kick on around 190-210degrees) if not, turn on the ac and and see if the fan starts running, if not, your fan motor is bad

Hope this helps

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  3. Tighten sensor to 20 ft. lbs.(28 Nm) torque.
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that i think would be more due to the vents changing from heat to defrost or vent. im not sure about the clicking but i know the low coolant needs to be replaced and the fan could be causing the clicking...the heater fan that is.

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I also own a 99 grand am 3.4L
The coolant fans will not come on until the engine temp gets to about 220 degrees.

if they do not come on the relays are located under the hood in the covered panel near the LF strut tower.

also the fans should run constantly when the A/C is turned on.

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