Question about 2001 Jeep Grand Cherokee

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2001 Jeep Grand Cherokee Laredo- radiator fan

I have a problem with my Jeep overheating and the fan won't come on. We have checked that the fan moves freely, we've replaced the temperature sensor, thermostat and the fan relay. We even jumped the fan to make sure it works and it does. We're running out of ideas of what the problem could be. Could you help us with this problem.

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  • littleone72 Oct 18, 2008

    I'm sure that I replaced the Radiator fan relay, it was also replaced back in April. And yes my Grand Cherokee has an electric fan.

  • Michael Miller
    Michael Miller Oct 21, 2008

    ive got a 2003 jeep and my fan quit working , the fan works but it will not turn on when the temmp is up above normal, last year i replaced the relay switch for the fan , can it go out that quick. help

  • Anonymous Dec 28, 2008

    the fan will not come on i tray every thing and i jump the fan is working i chenge

    the het sensor is still the same

  • jhelmich23 Jan 06, 2009

    I have the same problem...I was able to remove and replace the relay thanks to all the help with people posting but still no luck :(
    I tried turning the A/C on still nothing?? My engine light has been on for awhile but never, did the temp. go up till recently when noticed the fan was not working...not sure what next????PCM???

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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?

Posted on Sep 02, 2010

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Remove right front headlight cut out the plastic right below where the headlight rest on. Just a 4"x4" square and take out the plastic there you will see the relay,2 screws and remove the relay. Patch the hole with duct tape and put the headlight back, no need to remove the grill or bumper.

Posted on Sep 10, 2010

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Are you sure you replaced the radiator fan relay? This relay is a solid state relay and is very hard to get at. It is very common for these to go bad. It is located in right front corner of the engine compartment behind the right headlight. You can barely see it let alone get your hand on it. It has two 5/16 screws holding it down. The PCM sends a signal to this relay telling it to turn on the fan. Having said all this I am assuming that you do have an electric fan. Some grand cherokee's have a hydraulic fan depending on year and engine that uses power steering pressure and a solenoid to actuate it.

Posted on Oct 18, 2008

  • Travis Sutherly Oct 18, 2008

    You may need an acurate wiring diagram to check power to the relay. It should get power from a maxi fuse in the fuse box. With a scan tool, you could actuate the relay. Does the fan come on with a/c on? The PCM sends a signal to the relay based on coolant temp and a/c switch status. If you can verify power and ground to the relay, continuity to the fan motor, coolant temp and/or a/c switch input to the PCM (using a scan tool), then you may have a problem with the PCM. I would recommend a professional or dealer diag this because PCM's can be expensive and they have to be programmed at the dealer. So, try to rule out as much as you can before suspecting a PCM.

  • Travis Sutherly Oct 18, 2008

    PS: Make sure you check power and ground at the motor, the relay only supplies power.

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I had the same problem. Replaced the fan motor , thermostat and relay. Worked great for about two weeks then started over heating again when idling, i.e. the fan motor was not coming on. While the engine was hot I reached my hand between the battery and fan to check the connector from the fan to the relay. When I wiggled the connector the fan motor would run until I let go. One of the wires was broken behind the insulation in the top of the connector. And naturally these connectors are usually dealer items not available at your chain auto parts stores

Posted on Sep 19, 2009

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I did all this and it is alot easier to take out your right headlight but keep in mind that you have to remove the grille which is attached to the bumper . the relay is right there its square with 2 (5/16) bolts .. unclip it and remove ...

Posted on Aug 19, 2010

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I change the raditor in my jeep and the fan is not working to good it will come on but it is still over heating

Posted on Jun 14, 2011

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co7196
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SOURCE: My Jeep Cherokee 95 Radiator temperature is always hot

100 degrees f? That is way too cold Either you have the wrong thermostat or it is wide open. 180 degrees is nominal and give you the best performance.. With AC on, expect 190 to 200 degrees. We are talking farhrnheit and not ccelsius, correct?

Posted on Jun 14, 2009

Suzman
  • 642 Answers

SOURCE: 1999 jeep grand cherokee laredo

Try these troubleshooting tips before replacing anything else.

Posted on Nov 01, 2010

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SOURCE: 2001 jeep grand cherokee laredo

suggest that you rent a pressure tester from auto zone or advance auto and preform a pressure test on your cooling system. follow the instructions on the test of pressure to your cooling system,also check for coolant leaks onto the ground from radiator area. may be bad water pump,broken hose,heater hose,upper radiator,lower radiator,or a bad radiator itself. a simple pressure tester will reveal the coolant leak. but make sure to follow the instructions with the pressure tester,as you can damage your coolant system otherwise. thank you for choosing fixya.com


















Posted on Sep 17, 2011

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