Loud fan

[giovannialex23]

Hello everyone, I'm still new with this and Jeeps and I am in need of some advice. I have a 2021 Jeep Wrangler Unlimited Sport, I recently started hearing A fan just get so loud out of nowhere but 95% of the time it gets loud when I am stopped. I hear it get a tiny bit loud at first and then I look at the temp and it starts going up and it finally hits the max and it is SUPER LOUD but when I start driving , it takes about 2 mins and it slowly cools off. Does anyone have an idea what it could be?

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[Chocolate Thunder]

Normal. All of ours cycle high periodically and it’s so loud it sounds abnormal. It’s not.

 

[Old Jeeper]

There is a viscous Flud coupling on the fan. As the engine bay heats up it causes the fluid to firm up and lock up which makes the fan move a LOT of air fast to cool it down and make a lot of noise doing so.

 

[Heimkehr]

I'm still new with this and Jeeps and I am in need of some advice.

I have a 2021 Jeep Wrangler Unlimited Sport, I recently started hearing A fan just get so loud out of nowhere but 95% of the time it gets loud when I am stopped. I hear it get a tiny bit loud at first and then I look at the temp and it starts going up and it finally hits the max and it is SUPER LOUD but when I start driving , it takes about 2 mins and it slowly cools off.

As written, the bold text says your temperature gauge needle moves all the way up into the orange zone, indicating a dangerous overheating situation. If that's what you intended to say, have it checked by a competent mechanic as soon as possible.

Know also that if you've the 2.0T in your Jeep, there's a known issue regarding slow coolant leaks on some vehicles.

 

[giovannialex23]

As written, the bold text says your temperature gauge needle moves all the way up into the orange zone, indicating a dangerous overheating situation. If that's what you intended to say, have it checked by a competent mechanic as soon as possible.

Correct, it literally hits the top line and it turns red and then it starts beeping, but as soon as I start moving it cools down and stays normal.

 

[Heimkehr]

Correct, it literally hits the top line and it turns red and then it starts beeping, but as soon as I start moving it cools down and stays normal.

A literal red flag.

If possible, park the vehicle and arrange for a roll back transport to a dealer or mechanic of your choosing.

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