Is My JL Too Hot?

[SadRobot]

I'm cool now. Communicating to the fan again.

What was wrong with it?

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[roaniecowpony]

What was wrong with it?

It broke.

 

[Blacksport]

Does the fan play nicely?

Usually you need to reprogram the fan to go along with a lower temp thermostat.

Fan works fine with no programming, been watching it with A/C on or off. Just went for an errand down the interstate, 70º in S. Florida, temp never went over 190, usually stayed around 185, which is as low as it goes...

 

[rdfact]

I once saw coolant temps hit 253*, oil was 251* in my '21 3.6 JLUR-XR. I was loaded down with camping gear climbing a mountain pass, outside temps were high 90s. It's basically a stock XR except for steel front bumper and winch. The winch sits down in the bumper so does not block the grill.
Since then I have never seen anything over 237*, but 230* is not uncommon for mine. The little digital temp graph never shows anything higher than normal. This thing certainly runs hotter than any other vehicle I have owned.

 

[Terrymo]

It broke.

Now I’m not accusing anyone here…but I know when I say “It broke” without explanation, it means I broke it.

 

[roaniecowpony]

Now I’m not accusing anyone here…but I know when I say “It broke” without explanation, it means I broke it.

Well, I installed it and I was using it when it broke. So, there may be a lot of truth to that.

 

[artisteMadk [SCAMMER]]

I've recently been tracking the engine temp on my 2022 JLUR XR. It typically runs at around 230 degrees and pops up to 237 at times. This is highway driving when it's about 50 degrees outside. The local dealership replaced the thermostat, but the result is the same. The dealership's research tells me there's no guidance saying when to get concerned about engine temp, so no-one I've talked to so far knows for sure if there's a problem.
Looking for some knowledgable folks out there that can tell me whether I'm OK or perhaps what path I need to pursue to track this down.
In my mind, these temps are too high. thanks, rex

Your Wrangler running 230–237°F is a bit higher than normal (usually 190–220°F) but not immediately dangerous. Since the thermostat replacement didn’t help, the issue is likely elsewhere coolant level or mix, radiator airflow, or fan operation.

 

[artisteMadk [SCAMMER]]

That does seem a little high to me also, especially if you're getting that temperature on the highway at 50 degrees where air flow should be cool and plentiful. Do you have a large winch, lights or bumper that might be obstructing the radiator?

Any aftermarket accessories like a big winch, heavy bumper, or additional lights can partially block airflow to the radiator, which could easily push temps up, even in cool weather. If you have any of those, it’s worth checking whether they’re restricting air and, if so, considering a spacer or fan upgrade to help improve cooling.

 

[silverooby]

Any aftermarket accessories like a big winch, heavy bumper, or additional lights can partially block airflow to the radiator, which could easily push temps up, even in cool weather. If you have any of those, it’s worth checking whether they’re restricting air and, if so, considering a spacer or fan upgrade to help improve cooling.

No obtructions

 

[YBABRAT]

Are you sure your JL is not Canadian? C vs F Kilometer vs Mile. HA!

I only got that temp when in 100°F weather running hard in NV and Cali mountains. It's high but I never batted an eye. These 2nd Gen Pentastars like it hot.

 

[SadRobot]

Well, I installed it and I was using it when it broke. So, there may be a lot of truth to that.

True but you were on your way to meet up with me and I'm cursed so...... my fault?

 

[roaniecowpony]

True but you were on your way to meet up with me and I'm cursed so...... my fault?

 

[Terrymo]

Ok that’s enough suspense and dramatic tension…what was the fix?

 

[roaniecowpony]

Ok that’s enough suspense and dramatic tension…what was the fix?

I'm just running OEM since the Miller trip. Actually, my jeep hasn't left the block since then. Wednesday, we took the wife's new GX up to Santa Barbara for tacos. Yesterday, I mustered the energy to take the RPM controller to the post office and send it off to Jon at RPM. Today, I thought I'd work on my ark in case it keeps raining. So far, just some computer modeling. AI can play terrible mind games. Those models, you know.

But, if anyone is a taco or Mexican food enthusiast, with a bit of taste for the unusual, Los Agaves, in Santa Barbara makes some incredible stuff, with their daily specials leaning toward seafood ingredients. But all of it is great. Not the usual flavors of typical places. 600 N. Milpas St, Santa Barbara. Tell them I sent you and you recieve a complementary WTF look.

 

[UncleJimmy]

230 degree oil and/or water temps are not unusual temps on later model vehicles. You would be getting a warning light/message displayed, if that is the case. The computer is looking out for you in your best interest and will let you know when it is time to panic, so in the meantime, trust the computer, and just drive.

lol! You mean trust Stellantis who designed higher engine temps to meet CAFE regs.

OP there is already a lot of discussion on here in managing temps and most on here thinks it’s a good idea to do something about it such use the cooldown feature of the Tazer to keep the temps in a lower range or instal RPM fan controller. You should know that one of the failire modes of these engines (3.6) is head gasket coolant leaks.

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