2004 Jeep Grand Cherokee 4.0l Fan Relay Location

Cates Sweeme45 January 07, 2022
Inside information
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The electric car fan relay is USUALLY the suspicious in cooling bound up problems along blower-equipped 4.0L WJ's. If you take it to the dealer, make up prepared to earnings. The authorized elbow room to replace this relay is to pull the stallion from bumper comprehend to gain access code. The relay is located under the passenger side headlight. The shortcut is to cut an accession hole in the plastic under the headlight.

I wish I could show you the authorized method you said it to decreased the access hole, however when I went to substitute my fan relay (for the second time), I constitute that the dealer World Health Organization did the work antecedently had cut a yap for me already - even out though I was charged labor for them to remove the bumper cover.

For this second relay alteration my WJ has experienced at once, my symptoms were simple to diagnose. My engine rooter would remain on after shutting off the fomite. Fortunately, I was the one driving the vehicle when this started natural event (not the Mrs.). Basically, something goes awry in the fan relay, allowing a constant stream of 12v power to reach the fan - regardless of ambient temperature or key position. I readily returned home and disconnected my negative assault and battery cablegram to shut the fan off.

Remotion

  1. Dispatch the Gram-negative barrage cable from the battery.
  2. To snub the access hole for the relay, first you must remove the passenger position headlamp. To do this, remove the jackscrew from the top of the headlight. The jackscrew is directly on top of the headlight and does NOT screw into the radiator Congress of Racial Equality support (see pic below). After the jackscrew is fully removed (this prison guard is roughly 6" long), grasp the headlight assembly and forcefully pull the headlamp outward. Unplug the headlight wiring tackle. Notice the exising hole in plastic under headlamp on my WJ.

  3. Unscrew the two screws holding the relay to the body.
  4. There International Relations and Security Network't alot of slack in the wire, only sufficiency to pull the relay out of the hole and disconnect it. Take note that the electrical stopple has the cookie-cutter screen out of locking clips as unusual locations in the engine compartment. Use monish releasing the locking click to avoid breakage.

Reinstall

  1. Connect the new relay to the wiring harness. Follow sure it is firm seated.
  2. Bind the electrical relay to the vehicle body in its previous localisation.
  3. Reconnect the headlamp wiring harness.
  4. Insert the headlight back into its original position.
  5. Reinstall the jackscrew in the suitable hollow. Be sure to apply about pressure to the bottom of the housing while doing this to assure the jackscrew passes through the retaining loop on the back of the headlamp. If you miss this retaining loop, you discharge the risk of breaking it off when tightening the jackscrew.
  6. Reattach the negatie battery cable to the battery.
  7. Start the vehicle and let IT idle until normal operative tempurature is reached. You should hear the electic fan kick on around 210°.

Gallery: Fan Relay R&R (WJ)

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2004 Jeep Grand Cherokee 4.0l Fan Relay Location

Source: https://jeepslimited.com/index.php/write-ups/engine/fan-relay-r-r-wj

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