Fan comes on for seemingly no reason

[kingspecialized]

I have a 2021 JLU with 2.0 turbo. Recently, the fan kicks on as if I am off-road on a steep climb. The weather hasn't been hot at all. When I look at the temperature gauges, all are below the middle line. What could be causing this? I saw a recent post about a blown head gasket and am now really concerned. Any thoughts?

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[John VonJeep]

JL fans kick on a lot. Like, a LOT. Are you sure this isn’t something you’re just now noticing?

 

[kingspecialized]

I don’t think so. It’s new. It started on a trip to see the eclipse last month. We were on our way home doing about 70mph when we hit a dead stop in traffic. The jeep was overheating. After a few minutes it calmed down, but now it seems to come on much more often than it used to. My daughter took it for a drive today and asked if I knew about the jeep sounding like a rocket ship.

 

[autotragic]

I don’t think so. It’s new. It started on a trip to see the eclipse last month. We were on our way home doing about 70mph when we hit a dead stop in traffic. The jeep was overheating. After a few minutes it calmed down, but now it seems to come on much more often than it used to. My daughter took it for a drive today and asked if I knew about the jeep sounding like a rocket ship.

Just because I'm curious are you running the AC more than you were a few months ago?

 

[kingspecialized]

Not at all.

 

[kingspecialized]

How would I know?

 

[kingspecialized]

I haven’t seen any notifications.

 

[autotragic]

Not at all.

Next dumb question, have you checked the coolant level to make sure it's not low?

 

[NWJeepr]

The 2.0's turbo is water-cooled. There's a heat exchanger up front with the radiator for the cooling system. It could be your turbo is getting hot. Makes sense if you were pushing the Jeep at freeway speeds and came to a dead stop that there would be a lot of heat built up. The fans cool the exchanger.

Our 2.0's have two cooling circuits, and two coolant reservoirs. Make sure they're both full and the coolant is in good health.

 

[Renegade]

Do you use your HVAC in auto mode? It could be engaging the compressor for AC or defrost without you knowing.

 

[mwilk012]

I don’t think so. It’s new. It started on a trip to see the eclipse last month. We were on our way home doing about 70mph when we hit a dead stop in traffic. The jeep was overheating. After a few minutes it calmed down, but now it seems to come on much more often than it used to. My daughter took it for a drive today and asked if I knew about the jeep sounding like a rocket ship.

What do mean it was overheating? How hot?

 

[kingspecialized]

I think it was 240. The warning lights came on.

 

[mwilk012]

I think it was 240. The warning lights came on.

Have you checked for leaks? Spent much time off road?

 

[kingspecialized]

No leaks. I haven’t been off road since March.

 

[mwilk012]

No leaks. I haven’t been off road since March.

Have you checked your coolant level?

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