2006 TJ is running hot

Jack1947

Tj newbie
Original poster
Supporting Member
Joined
Sep 9, 2020
Messages
25
Location
Australia
Hey fellas,
My jeep is running hot from start up. Coolant and oil are at lvl. Air filter is clean.

I'm hoping it's not the Head Gasket. Any thoughts Guys?

Thanks
 
Thermostat stuck? Air bubble in system?

Have you checked any of those? When was the last time you changed the thermostat? Is the upper hose hot at all?
 
X2 on more info, if the gauge is reading slightly to the right of 210 then you are most definetly ok, however if you are far to the right from the 210 center then you may have an air bubble etc. post a pic of what it looks like running hot on the gauge
 
X4, what may seem to be too hot is often exactly how it should be. Tell us exactly what your temperature gauge is saying. 100c? 120c? 80c?
 
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Thermostat stuck? Air bubble in system?

Have you checked any of those? When was the last time you changed the thermostat? Is the upper hose hot at all?
Haven't checked that bud. And yes top hose is very hot.

I will flush the radiator this weekend
 
A little more info than just its "hot" will help you get help.
Define running "hot".

What does the temp gauge say?
X4, what may seem to be too hot is often exactly how it should be. Tell us exactly what your temperature gauge is saying. 100c? 120c? 80c?
Again, what is your temperature gauge indicating? What temperature are you seeing that is making you believe your engine is running too hot?
What does the Temp gauge say? Can you post a pic of it while running
Apparently
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Reactions: MikeE024 and Chris
I had a similar problem with my 2005 Jeep Tj. gauges were reading normal, in the 210 region... smack dab in the middle. Diagnostics read the actual temp as high as 229. I had replaced the thermostat three or four years before. Never looked at the stamp in the center. Some read 198, some 203... the temp stamp on mine was missing, or had just run out. I was thinking fan clutch, radiator, fluid... but a new thermostat did the job. Diagnostics read 205 after the new part was in. The gauge more or less looked the same as it did before the fix. Hooking it up to a diagnostic machine at a shop gave me a much more accurate reading than trying to read the gauge on the dash.