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Started By
Message
1
Posted on 4/20/26 at 8:49 pm to deeprig9
quote:
I have no codes. No CE light.
Can I assume by that you did scan it and there are no codes, including soft codes?
Posted on 4/20/26 at 8:57 pm to deeprig9
quote:should’ve sold it at cash for clunkers
2015 Cherokee
Posted on 4/20/26 at 8:58 pm to deeprig9
The thermostat is likely stuck partially closed. Should be an easy fix.
Posted on 4/20/26 at 8:59 pm to deeprig9
Air trapped in cooling system or weak water pump
Posted on 4/20/26 at 9:12 pm to deeprig9
quote:
Why is this car overheating?
It’s a Chrysler product
Posted on 4/20/26 at 9:14 pm to deeprig9
quote:
2015 Cherokee
Thermostat shermostat.
It is the Chrysler Gremlins that are causing your problems. Or the curse of the Dodge Brothers. Maybe the infamous quality control known all across the Stellantis group.
Take your pick. No matter, though, it is your own fault for owning a Chrysler product. Never again for me.
Posted on 4/20/26 at 9:15 pm to gotigers53
Easy to check with a water hose.
Posted on 4/20/26 at 9:28 pm to deeprig9
High mileage? Could be head gasket or plugged water port.havevyou checked water pump?
Posted on 4/21/26 at 12:00 am to deeprig9
Weak radiator fan motor. Spray a water hose in the front of the radiator and see if the water slows the fan down. If it does replace it.
Posted on 4/21/26 at 1:10 am to deeprig9
quote:
If stuck closed, why would it not overheat at idle?
you are right about it's function (coolant flow), but car doesn't get that hot just idling a couple minutes. poster who said thermostat much is on point.
Posted on 4/21/26 at 1:35 am to deeprig9
Q: Why is this car overheating?
A: 2015 Cherokee
A: 2015 Cherokee
Posted on 4/21/26 at 1:43 am to deeprig9
Typically a vehicle Not overheating at idle but getting hot while driving is an indicator of a restricted radiator;however, I'm aware your radiator was replaced late '24. This does NOT automatically rule out the radiator but since it is approx only 18 months old the thermostat is next on the list of probabilities. You must understand that there are many things that could cause your issue- I'm giving you the "most likely" scenarios based off of 40 yrs of being a professional mechanic.Many in this thread have suggested installing a T&G(thermostat and gasket) and I agree with them. You can spend time shooting down any suggestion but sooner or later you have to DO something and if what you do doesn't fix it at least you can remove it from the list of possibles. The cost of a thermostat and how high it is on the list of possibilities make it an easy decision. It is NOT a difficult job to do.
Make certain to refill the system properly after you do the job. Getting the air out of that system requires some know how.
Make certain to refill the system properly after you do the job. Getting the air out of that system requires some know how.
Posted on 4/21/26 at 7:41 am to W2NOMO
quote:
Thermostat much?
This
Posted on 4/21/26 at 8:00 am to windmill
Do not over-torque the thermostat housing.
Posted on 4/21/26 at 8:26 am to deeprig9
Replace the radiator cap.
Posted on 4/21/26 at 10:40 am to TimeOutdoors
quote:
Take the thermostat out, see what happens… Summer is approaching, put one back in in the fall…
Years ago I removed my thermostat because of overheating. Then forgot about it for years. One advantage of living in the south where it rarely gets below freezing.
Posted on 4/21/26 at 12:13 pm to deeprig9
A temp gun would help isolate this. Collapsed radiator hose, thermostat stuck, water pump, etc.
You can have the radiator cap off on a cold engine and then start it up. You should see flow when it gets up to proper temp if the thermostat is working properly even at idle.
You can have the radiator cap off on a cold engine and then start it up. You should see flow when it gets up to proper temp if the thermostat is working properly even at idle.
This post was edited on 4/21/26 at 12:17 pm
Posted on 4/21/26 at 2:36 pm to Bamafig
quote:
Is it the 2.4 or 3.2? I was referring to the latter.
2.4
Posted on 4/21/26 at 3:27 pm to subMOA
quote:
Thermostat or water pump.
One is an easy fix, the other, prepare thy anus.
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