First let me preface this by saying that this is going to be a pain. You are looking at a few hours of work.
The radiator fan relay is located underneath the passenger head light, but you can't see it unless you you remove the plastic housing around the light which would entail removing the bumper.
It looks something like the picture and has a 4 pin connector the color might be a tan or grey:
LOOK IN THE RIGHT FRONT FENDER.
SOURCE: radiator fan relay
check under the bonnet, there should be some fuses and relays in a black box, normally near the windowscreen.
hope this helps.
SOURCE: location for radiator fan control relay circuit
This relay is a common problem for Chrysler vehicles. Located in the passenger side bumper area (Jeeps). Test the fan first.
Hope helped (remember rated ths help) Good luck.
SOURCE: Radiator fan not operating, radiator fan relay
Jeep WJ Grand Cherokee
The Radiator Cooling Fan Relay Switch for a 2003 Jeep Cherokee is located behind the bumper on the passenger side underneath the headlight.
There are two ways of accessing it:
1. Remove the bumper.
2. Remove the pasenger side headlight assembly and cut a hole in the plastic underneatch click on the link below for more info.
The relay seems to be a common replacement item for this vehicle. One cause of the failure is that the relay overheats, per a note inserted in the replacement part packaging.
The cutout method is used by dealers. In one vehicle, the relay failed again after 40,000 miles or so. While replacing the relay it was noted that it was secured by one screw and it was not tight. This did not provide thermal contact with the chassis which helps cool the relay. The cause of the second failure was likely due to improper installation. Trying to work through a cutout would seem to make it difficult to get both screw isntalled securely. Furthermore, the new parts today use steel pop rivets for installation to help guarantee it will maintain proper thermal contact with the chassis. The pop rivets cannot be isntalled without removing the bumper.
It is not difficult to remove the bumper and grill to get to the relay. It sounds like a big deal but you are talking a half dozen screws and less than a dozen plastic rivets. The act of cutting a hole and working in cramped quarters has to be more difficult and it does not provide as quality a job.
Hope help with this (remember rated this post).
For radiator replacement procedure and radiator problem troubleshooting. I suggest you to click the link below and follow the detailed procedure :-----
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How to Replace
Engine cooling Fan on car?
http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-engine-cooling-fan-on.html
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Engine makes noise and Cooling Fan belt Breaks?
http://howtobyme.blogspot.com/2011/12/engine-makes-noise-and-cooling-fan-belt.html
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Replace Fan Relay
but still Radiator cooling fans not working?
http://schematicsdiagram.blogspot.com/2011/12/replace-fan-relay-but-still-radiator.html
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Cooling fan relays location?
http://technoanswers.blogspot.in/2012/02/cooling-fan-relays-location-on-1998.html----------DIC says
"COOLING FAN FAULT"?
http://schematicsdiagram.blogspot.com/2011/12/dic-says-cooling-fan-fault.html
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How to replace radiator Cooling Fan?
http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-cooling-fan-on-acura-car.html
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Engine cooling
components working?
http://repairhelpcenter.blogspot.com/2011/11/engine-cooling-components-working.html
-------------
How does Vehicles
Engine cooling system works?
http://repairhelpcenter.blogspot.com/2011/11/how-does-vehicles-engine-cooling-system.html
----------
cooling fan not working
http://schematicsdiagram.blogspot.in/2012/02/hyundai-sonata-cooling-fan-not-working.html-----------
Fuel pump relay and
cooling fan relay troubleshooting?
http://repairhelpcenter.blogspot.com/2011/10/fuel-pump-relay-and-cooling-fan-relay.html
----------
Why Transmission fluid leaks near radiator?
http://repairhelpcenter.blogspot.in/2012/02/transmission-fluid-leaks-near-radiator.html
----------
Transmission fluid leaking?
http://technoanswers.blogspot.in/2012/02/ford-windstar-transmission-fluid.html
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How to replace Radiator?
http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-radiator-on-audi-and-vw.html
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HOW TO REPLACE AN UPPER RADIATOR HOSE
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-upper-radiator-hose.html
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HOW TO REPLACE A LOWER RADIATOR HOSE
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-lower-radiator-hose.html
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How to replace Radiator on Car models?
http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-radiator-on-acura-car.html
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How to flush cars radiator?
http://repairhelpcenter.blogspot.com/2011/11/how-to-flush-cars-radiator.html
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HOW TO PRESSURE TEST A RADIATOR AND CAP
http://schematicsdiagram.blogspot.com/2011/07/how-to-pressure-test-radiator-and-cap.html
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HOW TO REPLACE A RADIATOR
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-radiator.html
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HOW TO REPLACE A RADIATOR SUPPORT
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-radiator-support.html
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This details will help.
Thanks.
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