How do you remove the fan relay sensor on a 2004 Grand Cherokee

http://www.jeepforum.com/forum/f310/fan-relay-location-2004-wj-4-0-a-1370578

hi jimmy.
see if this link helps you out.
Why does oxygen sensor fuse keep blowing on my 2004 jeep grand cherokee...

here,
4L or 4.7?
RTM
click WJ in the box, free factor service manual.
chapter 8w, page 42-13 &14


http://www.morris4x4center.com/knowledge-base/index.htm?utm_source=cj#service
not too exciting.. really, a fuse, relay2 and PCM at bottom

Only overheating at idle while standing still is most probably a cooling fan problem. If you have the electrical cooling fan, then first check its fuse. If ok, than there are two separate relays (high speed and low speed) in the power distribution center under the hood. (this is for 2004 model only). Swap both relays, it can be that the low speed relay is bad. If this helped, than you will have to replace the bad relay. If this didn´t help, then put 12V directly on the fan motor (watch hands and loose clothing) to be sure the motor is not bad.

Could be either one, but usually its the fan motor.
You can run a wire direct from the battery to bypass the relay to see how fast the fan is able to run. The connector on the fan relay can become damaged too.

The 1999-2004 Jeep Grand Cherokee fan relay is under the right front portion of your bumper support. The Bumper is easy to remove and is a 2 piece system. Take out your headlights (1 7mm bolt on each one), then take out all the 7mm bolts on the grill. Look up in thefront fender wells and there is 1 10mm bolt on each side with 3 or 4 plasctic rivits (cut the head off and push them through and replace with new plasctic rivits from your local parts store and make sure you have a plastic rivit setting tool). There is 3 plastic inserts under the bumper, pull the heads off, then pull the insert out. Your grill and bumper cover will then come off. The next part is to remove all of the Torx T27 bolts. Then disconnect the ambient air temperature sensor on the passenger side by the radiator. There is 2 clips (1 on each side) That hold the plastic in. Depresses them with a small pair of needle noise pliers. Push the air box clip through and the ambient air temperature sensor harness clip through. Once the plastic frame is off, release the electrical connectors for the head light harness, then the whole frame comes off. Once the frame comes off, on the passneger side is the fan relay. I like to use the after market Dorman fan relay because it comes with a new electrical pigtail. It is available from your local parts store. Dorman Part # 902-303. Good Luck

check the thermostat or your radiator might be stopped up

most likly to be the fan its self, pulling to many amps witch would blow the relays every time???

RADIATOR FAN WORKS OFF OF THE COOLANT SENSOR NOT THE IAT SENSOR. CHECK YOUR RELAYS AND ALSO SEE IF IT COMES ON WITH THE A/C AS THIS OVERIDES THE COOLANT SENSOR FOR THE FAN. MOST LIKELY CAUSE WOULD BE A FAN RELAY

You did exactly what I would do (and the dealer repair guy for that matter) by going after it thru the bottom of the headlight housing. But if you aren't having any luck finding it then I would go ahead and remove the bumper so you can have a better look at whats behind there. I have a 2004 cherokee too and that's where mine was. Hope this helps!