2018 Rubicon Suddenly Overheating Uphill

[Countryswiss]

The AC condenser is in front of the radiator. Just because it’s clear doesn’t make the radiator clean. Take the plastic cowling off over the radiator and make sure leaves or road debris is not between the 2 Impeding the air flow.

Will do, I am planning on also removing the entire grill for better access to the radiator as well. Any other tips for reaching it?

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[GtX]

I do some pretty heavy mudding.

In Texas. Lot of clay there. My bet is on a dirty radiator.

 

[Countryswiss]

In Texas. Lot of clay there. My bet is on a dirty radiator.

I actually just moved here a week ago, Noticed the overheating issue during the 1500 mile drive over. We will find out tomorrow though

 

[GtX]

I actually just moved here a week ago,

Where from?

 

[Countryswiss]

Where from?

California, but the good rural part... I'm not a weirdo

 

[GtX]

California, but the good rural part... I'm not a weirdo

You relocated CA to TX.
You're cool.

 

[Countryswiss]

Update
I sprayed out the radiator from the engine side and straight chocolate milk came out for about an hour. I got what I could with the fan in the way but I am going to remove the fan in order to get the rest of the radiator.
It seems to be running a bit cooler but we will see what ends up happening as I drive it more and how it runs once I clean out the rest with the fan removed

Any tips on removing the fan?

 

[John VonJeep]

Any chance your variable speed fan is stuck on Low?

 

[Countryswiss]

Any chance your variable speed fan is stuck on Low?

Its possible, how do you recommend I would check that?

 

[mwilk012]

Update
I sprayed out the radiator from the engine side and straight chocolate milk came out for about an hour. I got what I could with the fan in the way but I am going to remove the fan in order to get the rest of the radiator.
It seems to be running a bit cooler but we will see what ends up happening as I drive it more and how it runs once I clean out the rest with the fan removed

Any tips on removing the fan?

Do a quick search for one of the radiator replacement threads, it has every detailed step from the service manual in it. Replacing the radiator is pretty cheap, if it won’t clean up.

https://www.jlwranglerforums.com/forum/attachments/cooling-fan-removal-diy-pdf.533846/

 

[Countryswiss]

Do a quick search for one of the radiator replacement threads, it has every detailed step from the service manual in it. Replacing the radiator is pretty cheap, if it won’t clean up.

https://www.jlwranglerforums.com/forum/attachments/cooling-fan-removal-diy-pdf.533846/

sounds good, I will be removing the rad fan tomorrow to clean the rad from behind. Looks like only two bolts needed to take it out

 

[Countryswiss]

Well folks the updates with be temporarily paused as my jeep was hit while parked outside a house. Only a scratch on the fender but the suspension is so damaged it isn’t drivable. I’ll keep y’all updated

 

[garykk]

Damn, a clear road and they hit you!!!

 

[Countryswiss]

Final update!
Jeep is all fixed up from the accident and I removed the rad fan to clean the rad fully. Overheating is completely fixed now. Cheers!

 

[mwilk012]

Final update!
Jeep is all fixed up from the accident and I removed the rad fan to clean the rad fully. Overheating is completely fixed now. Cheers!

Glad it had a good turnout.

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