help kj running hot

[joeysjeep]

Hey today I noticed the ok running hot so I pulled over and let it cool I added water to the coolant tank cause that's all I had at the time was out mowing yards I am pulling a small trailer with only a small riding lawn mower on it well when I turned it on to add the water it just spit it all back at me from the coolant tank and its coming out a dark red color man this is the only ride I got working right now my truck is down for the moment. What can I do

 

[Jbergun]

DO NOT over heat it flush out the coolant it should not be brown or clay colored i f ed mine up good by not regularly changing the coolant these jeeps ask for HOAT thats it no universal bs. Check everything for leaks the radiator likes to crack on the upper driver side corner.

 

[M38 Bob]

Sometimes it's nearly impossible to add water when they're really hot. water goes in, hits steam, belch and blow water everywhere. Let it cool naturally, then add coolant. Bleed valve at thermostat housing after you start it to get all the air out. Keep an eye on it for a few days to see if it's FUBARED, or what/where it's leaking, or if you simply let it get low on coolant. Then fix any issue, flush, and fill with proper coolant type and mixture.

Bob

 

[Jbergun]

I retract my statement m38bob found some HOAT that says universal. Some people say put whatever 50-50 you can get. I say it calls for hoat thats what i use. I dont know if it makes a difference.

 

[Phil + Neela]

Check your coolant level, ensure your fan turns on (or engages if mechanical), then start looking at the possibility of a radiator clog or a bad thermostat--which are still fairly easy fixes.


Sent from my iPhone using Tapatalk

 

[joeysjeep]

Thanks guys I let it sit for awhile the topped it off I had to take it to church got to get my Jesus in it didn't run past the middle of the gauge I stopped and shut it off yesterday afternoon when I saw it get Just a hair past the middle sisnt want to take a chance of warping the heads I will be flushing out the system this weekend and changing the thermostat hopefully that helps I will update on my progress once again thanks guys quick question I did see some red clay crap on the cap and around the edges of the tank what is that all about never seen it in any other vechule I've had before thanks again

 

[uss2defiant]

red stuff is most likely rust.

 

[CactusJacked]

Or the coolant. But what is the "clay" part, is it a moisture/condensation/sludge build-up?
The upper left one (production) shows what ours came with. The newer replacement below it (service) is more of a pinkish-light red color.

You must be registered for see images attach

 

[uss2defiant]

or if you use zerex g-05 it's gold? clear?

 

[HoosierJeeper]

I think Zerex is still orange/red. Maybe it changes when it gets mixed with water. I have no idea lol.

 

[joeysjeep]

Idk what was in it before it's clay like when I go to flush it tomorrow I will take a pic of it and post it to show what I was talking about. Thanks for all the info guys I will be putting HOAT in it does anyone know where the thermostat is located on these rigs.

 

[uss2defiant]

by the lower radiator hose where it meets the engine block.
There's a plastic thermostat housing.

 

[joeysjeep]

ok thanks man

 

[uss2defiant]

read this bout the thermostat
http://www.jeepkj.com/forum/f196/thermostat-specifications-jeep-liberty-kj-3-7-a-56107/

 

[M38 Bob]

Of the past 2,187 thermostats I've known of being changed I'm sure there were at least 3 that needed it. One of the most fail proof parts on your engine, I'll about bet there's something else causing the overheat. But, I guess ya gotta start somewhere.

Bob

 

[LibertyFever]

I've experienced a few problems with overheating but mostly I overheated the transmission and not the radiator.
Here's what I found to be causing problems on my 04 Liberty Sport;

I have the Mopar trailer package which means an electric fan and a mechanical clutch fan.
I've had the electric fan twice and the mechanical clutch fan fail once.
My electric fan is two speed and it wasn't hard to apply 12v directly to it to test out the operation. I rebuilt my electric fans using wrecking yard parts.
The mechanical clutch fan should be stiff to turn when the engine is cold.

One day while examining my radiator I was surprised that it was plugged up with mud.
After a flushing of the rad fins with the garden hose my Jeep ran cool.

I've never flushed out my cooling system or changed the thermostat.
Maybe I should before the end of the summer.

Also on my summer ToDo list is a spark plug change.


Sent from my iPad using Tapatalk