JL coolant fan problem

anyone having a problem with the jl coolant fan being extremely loud when a/c on high?

 

I believe there are only 2 other members on this site with JLs, and one is brand new to us: @JDMcQ and @Jwaller. What have ya'll noticed.

 

I went to dealership they told me that it is completely normal now here's my problem I have a Wrangler JL Unlimited they had a JL Rubicon Unlimited we put them side-by-side the Rubicon is whisper quiet when the AC is on high mine is not and they are telling me that is completely normal which I do not believe so basically what they are telling me is if I spent an extra $10,000 I would have gotten a quiet coolant fan

 

Even the JL Rubicons are that way. I have noticed it in person a few times and also in a ton of videos. If you watch any of the JL journal videos you will notice it there as well.

~Jeff

 

if i knew this before i bought it i would have never gotten it 43000.00 for a noisy jeep

 

Under-the-hood insulation pads are found on some models. Perhaps the lack of an insulation pad on your JL could explain the difference in volume when you compared the JLs.

(this is a jk with insulation pad)

 

unfortunately this is not the problem its whisper quite until u put a/c on high then its obnoxiously loud with hood up or down ive always wanted a jeep since i was a kid and to finally get one and to hear this has ruined the jeep experience for me completely its so loud its embarrassing to hear and drive people actually stop and look when they hear it as i drive by

 

I don't think the blower fan is excessively loud. It does throw itself into tornado force mode when first turning on the system, but the noise seems normal for a high fan setting.

 

then there is something definitely wrong with mine if i leave it on i can hear it in the house and the dealer said its normal

 

Clearly, I have not had coffee yet. Coolant fan, not HVAC fan.

I don't even think I've hea re mine come on at all.

 

Take a video of it. Post it to youtube. Then post the youtube link here so we can all hear it. Maybe your right. Sounds like it is time for an LS upgrade.

 

https://www.youtube.com/watch?v=9M_RF-ZZmP4
here is the video of my loud coolant fan with a/c on low then high

 

Sounds like most electric fans to me.

 

Hard to tell if it is abnormal, but I could still hear other background noises with the fan on high. It may not be an option for you, but I do know of people switching to other fans known for being more quiet while offroading, because of the same things you are saying, that the factory fans are just too loud and obnoxious when your average speed is just 5mph on a trail. I have never really noticed. Guess I'm just too excited to be out on the trail.

 

now this is a 2018 will it void my warranty if i replace it with an after market fan

 

Your quiet replacement fan will always be "suspect" against any future claims for overheating or melt downs or emissions fails or poor performance or etc

 

@TJL if you can still hear the fan after the LS upgrade get your hearing checked LOL

 

Electric fans generally turn on or off with a temperature sensing switch (thermostat) and are not triggered by the a/c blower fan speed. Check out another similarly equipped JL at another dealership or insist for them to check whether your JL is wired correctly. My vehicles have similar loud fan sounds on hot days as the thermostat cycles the fan to come on/off based on operating temps.