Jeep running hot

[Offdgrid]

Hi everyone. Hoping for some help. 2013 jeep continues to run hot. I am at a loss. First the oil cooler went out. I replaced it with oem parts, upper and lower intake gaskets. Ran great a few weeks then started to run hot . Interstate driving the temp runs up 3/4 . Fan is running full blast. It will lower if you slow down. So I have put 2 thermostats in, new hoses, new radiator, new temp sensor, water pump. I have flushed heater core, flushed every bit of the engine repeadly. When I put new radiator on i found a bunch of sandy material in the overflow. I did not know anything about casting sand at the time. I am about to put another water pump on but I don't think that's the issue. Oil is clean, no antifreeze in oil. I am praying that I dont have a warped head. Anyone have any ideas.

 

[BLACKJKU]

Did you get all the air burped out good after opening up the cooling system?

 

[WhiteRhinoJK]

Mine is doing the same thing. I put a new thermostat, radiator cap, water pump, and burped all the air out of the system with fresh coolant. Still running about 230-250 while driving but sitting at idle it stays 210-220 with no issues. I’m clueless

 

[BLACKJKU]

Mine is doing the same thing. I put a new thermostat, radiator cap, water pump, and burped all the air out of the system with fresh coolant. Still running about 230-250 while driving but sitting at idle it stays 210-220 with no issues. I’m clueless

Is your cooling fan coming on?

 

[WhiteRhinoJK]

Fan is coming on for low and high speed. The exhaust is clean, no steam or white smoke. It has burped coolant out of the overflow once before when it’s done this.

 

[BLACKJKU]

Have you tried lifting the front of the Jeep some and then checking to see if it would burp again?

 

[WhiteRhinoJK]

I have. No air bubbles. I used the bleed screw on the thermostat housing as well

 

[BLACKJKU]

Have you checked the engine with a infrared temp gun to verify the engines temp? Now that I think of it I remember someone else who had this problem and found the temp sensor was bad.

 

[Chris]

I know this seems so obvious, but are you 100% certain the radiator is full? Have you checked the radiator fluid level when the engine is cold?

 

[WhiteRhinoJK]

Radiator has coolant all the way up to the cap at cold outside air temp. Have heater cores had issues clogging up with debris?

 

[BLACKJKU]

Radiator has coolant all the way up to the cap at cold outside air temp. Have heater cores had issues clogging up with debris?

That can happen on any vehicle, you'll know when you have no heat. I lost the heat in my F350 Ford a month ago and I reverse flushed the core and then put some CLR in it and let it sit overnight. Next day reverse flushed it again and then topped off the coolant bled it and now it will run me out it gets so hot.