Question about 2000 Jeep Cherokee

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2000 grand cherokee limited 4.0 liter

Electric cooling fan does not come on at any time,even when a/c is on checked fuse , it;s ok.
Checked fan ,it's ok ..difficult to check fan relay , looks different , not like a normal looking relay .it's square and flat , possible solid state style.
Would like to know how to diagnose this problem

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  • Anonymous Jun 12, 2008

    a/c is working but no blower when turning blower switch. can you tell me what is the problem?

  • rsbcriley Jun 22, 2008

    My adult son has a 2000 Jeep Grand Cherokee 4.0L/6cyl w/ 76,000 Miles. Electric fan does not work (AGAIN) already replaced once under recall. Vehice drives fine (even with fan not working) as long as the jeep is moving, doesn't have to be going fast, anything above walking speed seems to be enough to push air through the radiator and keep the TEMP gage needle straight up in the center of the gage where it should be. But, stopping for more than a brief red-light or crawling along in traffic will result in over-heating (which disappears as soon as the vehicle is moving again). This situation seems to suggest that the coolant is circulating properly (therefore not likely to be a thermostat or water pump problem). Haven't noticed a loss of coolant, although this issue has occured in the past with this vehicle. Given that the (dealer repaced) fan is less than 6 mo. old, I think it may be the radiator FAN RELAY, but cannot seem to locate it even with the appropriate HAYNES Repair Manual (incredibly bad illustrations). Can anyone tell me where the Fan Relay is located, so we can just repace it to see if that resolves the probem. Obviously, we are trying to avoid taking the Jeep GC to the Dealer without knowing exactly what needs to be fixed so they can do the usual rip-off extravaganza. JCR

  • gps4900 Apr 13, 2009

    I have the same problem - 3 times in 3 years. I replace in the spring and it works great all summer. Come spring and the fan relay is out again. It is at the dealers right now so I will write back later with results.



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I had the same problem and it was the connector on the right side of the radiator had corrosion and lost contact, had to replace the connector, fixed the problem.

Posted on Sep 07, 2008

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The fan relay is located below the r/h headlight bezel and below the plastic moulding. I am replacing the second one in two years. You have to cut a hole 1.5" from the verticle wall at the back of the headlight cavity 2"X2"centered on what looks like a rain gutter in the plastic moulding to access the relay screws. Save the piece you cut out'll want to silicone seal up the rain gutter after. Hope this helps. D

Posted on Jun 26, 2008

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To test a replay you must ground one pole, (86 I believe) and give power to another (56 I think) they will be next to each other or 1-2 pins apart, if you hear a click when you give it power and ground the relay is good

Posted on Jun 05, 2008

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Its the relay,there are two types of relays in 99 to 04 grand Cherokees, ones that have failed and ones that will!

Posted on May 21, 2008

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be sure the fan itself is still in working order.. if so you can also run a hot wire to fan, replacing the factory wires.. you can stilll us the factory ground wire.. just be sure to put a fuse on the hot wire just incase it shorts out..never can be to careful... this will save u a couple hundred bucks... hope this will help you...keith....

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My 02 Jeep Grand Cherokee stright 6 cyl keeps over heating!!!

Usually the electric fan(s) are temperature activated. I would look into the temp switch. If you're not sure what it is, go to the auto parts place and ask for one. This way you can look at it then hunt for it under the hood. It usually screws into the engine in the cooling system. Also, make sure the fan has a good ground. Check for power to the fan when the engine warms up. If you have a/c, turn it on and the fan should come on whether the engine is warm or not.

Hope this helps. Good Luck

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When the engine is at operating temp check the electric cooling fan. If it is not moving then i would check the fan relay which is located under the right side headlamp. 9 times out of 10 this is the problem

Aug 20, 2008 | 2000 Jeep Grand Cherokee

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