My Jeep Cherokee XJ Stopped Overheating!

In this video I wanted to update you guys on some of the heating issues that I've been having with my 2001 Jeep Cherokee XJ.
Thanks for watching!

[@weye3763]

Thanks for sharing...recently i replace water pump, radiator and radiator fan clutch. Coolant also replace. Thermostat i removed due to qatar this month very hot temperature...my 94 xj running smooth 😁

[@KCars]

Good to hear! Thanks for watching!

[@nj1639]

To me, owning an XJ is more of a hobby. I've been sorting out my '01 for the past three years and the issue of heat soak was a bit of a challenge. My AC needs to be addressed which will require removing the dash to access the evaporator which may correct the problem - but in the meantime for me the 4X55 AC works, as little as I drive. I replaced the factory heat shield between the intake and exhaust manifolds, wrapped the fuel injectors and still had the heat soak issue. I put a relay switch in to be able to kick on the E fan at my will. Overheating has now been checked off the list.

[@KCars]

Good to hear that you got that checked off. And I agree these jeeps are definitely a never ending hobby/project. Thanks for watching!

[@MajorWeakness]

Both my 2000 XJ's the electric fan only turns on at certain temp ls, not related to AC being on. Hope you don't have a heater core leak, very common, have to take dash out. If the heater core is leaking, also change the evaporator core while you are in there. Thanks for the video

[@KCars]

Hope I don’t have a heater core leak either lol thanks for watching!

[@SuperBobby1974]

@@KCars Back flushing the complete coulant system did drop the temp on my XJ a lot. I used radiator cleaner to eleminate deposits before flushing. When you smell coulant inside your car like you noticed and the coulant level is getting low all the time, the heater core is very suspicious indeed.

[@KCars]

It has happened 3 times so far, hopefully now it will be fixed with all these new cooling parts

[@erichimes3062]

If you are washing out the cooling system and the heater core using a garden hose connection, be very careful not to over pressurize it, or you will have a leaky core. Ask me how I know…

[@KCars]

That doesn’t sound fun lol

[@tomrohlfs5538]

If you are loosing coolant with no leak use a tester for exhaust gasses in the radiator. It can be a head gasket and burning it in the engine.

[@KCars]

Yep that’s exactly what the mechanic told me. He told me to just keep an eye out for it

[@realmayhem5343]

If you’re still active on here bro could you tell me where you bought that fan?

[@asten9169]

These jeeps all run at 210 degrees. The electric fan should turn on at 212 degrees and turn off when it gets back to around 210.

[@KCars]

Yep. Mine runs right under 210 now that I got a few of the cooling parts replaced.

[@TheRealMikeWilly]

Electronic fan on 2000 XJ should come on @ 238 and shut off when it gets below 217. I have the Factory Service Manual.

[@KCars]

238 seems a little high, I always thought it was 218

[@asten9169]

@@KCars because 238 is way to high

[@agajohanna428]

somebody better look after that rust problem. some of that ruse bubbling the pain on the uni body frame is more than just surface rust. pay attn to the rust in the wheel wells also

[@Raiz48]

I don't have a mechanical fan on my XJ. i put both electric fan. lol I am from Qatar and i never take my Xj during summer especially on day light. here its 41°C 🔥🔥🔥🔥. Thanks for the video.

[@KCars]

Dang that’s definitely hot. How does your XJ run with both electric fans? Thanks for watching!

[@Raiz48]

@@KCars yes climate in middle east always sucks. If you believe, Its runs well actually but the reliability we cant assure as one of my mechanic suggests. plus i always struggle to get parts locally. shipping and repair always tend to become expensive here in state of Qatar. most of the time we use other car's parts or even we used to craft parts 😆😆😆.

[@KCars]

Makes sense, I guess you can’t really guarantee the reliability of anything

[@ilmjcxj8064]

Since you're replacing the water pump, you might want to consider replacing the mechanical fan clutch at the same time. Mopar parts are the best, but they tend to be expensive. Since you seem to live in a not very hot environment, you can get away with an aftermarket fan clutch just like you seem to be doing ok with an aftermarket electric fan.

[@KCars]

I thought about that, the fan clutch seems to be good still so I’m gonna hold off on that until it actually needs to be replaced. Thanks for watching!

[@MrRickChase]

If the need arises, you can look to get the "HD" fan clutch. Hd xj clutch is the same as the standard zj clutch. Looks much larger, engages at a higher ratio. Lots of air noise from it but you get used to it over time. That along with a full overhaul of good parts (hesco) has kept my jeep very happy during hot summers and cold winters, 210 consistent and driving will bring it down a bit, too. Need to get a correct thermostat on it...

[@tunaman2200]

Nice jeep! Are those stock fender flares. Also what size tires are you running and what height is your lift? Thanks!

[@KCars]

Thanks! Yes those are the stock fender flares. Tires are 31x10.50, 3 inch lift

[@tunaman2200]

@@KCars thank you 🙏 That’s the look I’m going for . Best wishes brotha

[@KCars]

@@tunaman2200 you’re welcome and same to you! I have many other videos on my XJ, feel free to check them out!

[@John-oe6pp]

I really want to get hood vents on ny xj but im not sure if its worth messing up my hood.

[@KCars]

I’ve heard they make a pretty big difference but I agree I wouldn’t want to chop up my hood either

[@sadoon76]

my xj 2000 has dual electric fan clutch fan removed the climate reach 49C temp now very good

[@KCars]

Yep and that also keeps it from robbing power

[@bgrey55]

Heyy love your jeep also appreciate your vids but you have to check your fuel pressure. Your fuel pressure looks kind of low on the gage. It should be in the middle when you are driving. If not then you are in danger of having a low pressure which while damage your engine. Your engine oil pump might be a reason for low pressure. You can put in a cleaner and when your doing a oil change also run thicker oil or put lucos oil stabilizer in it.if it doesn't change that means your pump is on its way out and it needs to be changed. This what happened to me and I had to get a new pump which fixed the pressure. Hope this helps you take care.

[@KCars]

I think the way it fluctuates is pretty normal but I’ll keep an eye on it, thanks!

[@louiemoscatel585]

If you're smelling a maple syrup odor inside the jeep - expect a heater core leak. Or you may have a cracked head as your mysterious coolant leak. You are low on Freon - AC clutch cycling quickly. Your electric fan will operate when the ac high side reaches a certain number, 300+ psi if I'm not mistaken.

[@KCars]

I don’t have a maple syrup smell inside, I was told to look out for a bad head gasket. I’ll have to look into the AC issue you mentioned, it seems to be working fine though. Thanks for watching!

[@deadspeed6679]

Stock 95 xj runs at 205° in traffic on a hot summer day in California at 210 in 100° weather what did it for me was a Chem flush and heater core back flush that metal flake from the iron really traps heat

[@KCars]

True a good flush will help out

[@frankmick8683]

Im in AZ, and it gets hot here. 210 is where the jeep was meant to run even in the winter. To be honest, Ide be more concerned about ya oil pressure there, 15 ? That's not terrible but not great either. Those sensors/gauges have been known to way off. The only way to Kill a 4.0 is low Oil Pressure. Great Jeep BTW.

[@KCars]

Ya it usually hovers somewhere in the middle but it definitely varies depending on how I drive. Thanks!

[@motownXJdad9565]

cooling any car is easier in the southwest desert with low humidity, much harder in humid areas of the country like south texas, florida, michigan etc.

[@motownXJdad9565]

@@KCars try a new sending unit, not expensive and they are known to go bad and show low on the guage

[@katokioo]

Concerned? The oil pressure is right where it should be at idle lol anything above 13 psi at idle is normal and nothing to worry about

[@KCars]

I’ll have to look into that, thanks!

[@k9under]

I have a 99 XJ had that problem had a week temp sensor. fine now.

[@motownXJdad9565]

did the same with mine when i did my cooling system overhaul. cheap insurance

[@KCars]

Glad to hear, thanks for watching!

[@motownXJdad9565]

that E-fan not coming on with the AC is a glitch in the ECU in the 2000-01s, it is correctable at any Jeep\Dodge dealer

[@tylerhale1696]

Runs off a temp sensor

[@motownXJdad9565]

im just telling you what others have done over the years and shared on cherokee forum, and NAXJA.ORG. there was a service bulletin on this issue put out by Daimler\Chrysler to all the dealers with a fix, and those that have done it, reported the dealer did the repair free of charge. those forums can easily be searched for the info.

[@KCars]

Thanks for the info. I don’t think it’s too big of a deal that it doesn’t come on with the AC, as long as it comes on when it gets above 210

[@motownXJdad9565]

@@KCars it actually works off the high pressure sensor on the AC system, so if you let your AC run for awhile it may actually come on, prior to 2001, it worked off the climate control switch so it would turn on when the knob selected any AC setting.

[@KCars]

Ya that would make sense. And if it didn’t come on with the pressure sensor, then it would come on with the rising temperature anyways

[@richtyler1353]

If you’re replacing the radiator the best one you can go with is the Misimoto

[@KCars]

The performance one or the OEM replacement?

[@tylerhale1696]

I put a zj fan clutch and new water pump, won’t get to 210 unless I have ac on in 90° weather

[@motownXJdad9565]

yep did the same mod, along with a 180 stat, mine runs 185 with AC on full blast in 90° + high humidity weather.

[@tylerhale1696]

@@motownXJdad9565 does the 180 tstat really help over the 195?

[@KCars]

I’ve heard several people suggest the zj fan clutch, good to hear that it’s been working well

[@motownXJdad9565]

@@tylerhale1696 i think so, before those mods with a new shortblock, new radiator, and new water pump, driving with my AC on in hot weather it would run 215 driving, and stop\idling it would creep till i turned the AC off. plus its just personal preference and experience that i prefer my engines to run on the cooler safe side. i come from the drag \street racing world, running above 170 is pushing it for me personally. knowing what temp your oil, and tranny fluid start to break down and lose thier effectiveness will make you think twice about thinking that running a 4.0 close to 220° is normal.

[@Gotyoulookingnyc]

My 01 XJ E-fan kicks on around 215, no matter if AC on or not. Had to replace the E-fans relay recently this summer, It crapped out and the fan was on when the XJ was off. Also get your AC serviced, it shouldn't be kicking on and off that frequently.

[@KCars]

Yep mine kicks on right above 210 as well. I barely ever use the AC and it seems to be working fine when I do use it. Thanks for watching!

[@dansharp8042]

Go to Arizona in July and see if gets hot..........lol.

[@KCars]

Lol I’m sure it would out there!

[@brendabaldwin13]

Heater core bypass ,order one that fits an Lt 1 Camaro, then order 5\8 3\4, connecters by pass that thing in the summer time ,also drill small hole at 12 o clock on the thermostat ,if you turn the ac on your electric fan kicks on automatically ,but these fans wear out ,you wouldn't believe how much stronger it runs when you put a new fan in it,xjs rule all others drul ,justsayn.

[@KCars]

Yep I just installed a new electric fan and it hasn’t had any issues

[@JoeVizethum]

nice video - XJs attract more ad more friendly attention ? - interesting

[@KCars]

Thanks for watching!

[@ivanvillanueva6726]

Bro good video just a lil advice your intro is too long it almost made me skip but good video

[@KCars]

Appreciate it, just trying to experiment with different styles of video

[@letstalkcaliber704]

70s is not hot. Talk to me when you hit 110. Matt's off rd recovery takes their xjs out above 110 regularly ands runs them hard. Lots things can cause overheating. Throwing money at the jeep might not fix anything. You should really test the parts before replacing everything. Flowcooler water pump was worse for me. I suspect you have a bad fuel pump which was causing some stalling you mentioned in another video. The overheating could literally just been the hotter temperatures .

[@KCars]

Haven’t had any issues after I got the cooling parts replaced

[@dandutton8211]

Looks to me it's full a rusty water that will caus issues id address that forsure

[@KCars]

Had it inspected by a shop and they didn’t see a reason to replace the radiator, they just did a flush

[@expeditionbound2722]

You guys have AC? Most XJ owners lol

[@irishjoe9195]

I feel this atm I recently fixed my 07 WK A/C and many other things but now I need to fix the A/C on my 2000 XJ plus many other things.

[@expeditionbound2722]

@@irishjoe9195 I need to as well. I can’t figure out the random dying issue now