Air Lock in cooling system

Have you had it to a qualified repair shop for diagnostic's ? Pressure test the cooling system for leaks , does it have a radiator cap.

check coolant level is not to low could also have air lock in cooling system if all seems ok check coolant pump

you have created an overheating problem by replacing the radiator and the thermostat and not ensuring that there was no air lock in the cooling system
The fan is now constantly running because the coolant sensor is reading a high coolant temperature
First step is to ensure that there is not an air lock in the cooling system by bleeding the air out and if the fan still runs then check the way the thermostat was installed

Hi, Yes you have an air lock in your system, you may get this sorted by 1/. Removing one of the cooling hoses & try to blow with air.
2/. Drain all the system then put your heater on inside the vehicle & have the engine running & refill the system Start to do this from a cold engine. Please leave me feed back: Malcolm Campbell, Thanks.

Air lock in cooling system not allowing coolant to circulate through heater core. Need to bleed air or burp air from cooling system. Look for a bleeder valve by the engine side of the upper radiator hose possibly or on radiator.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/michael_2496c4f07ad24453

look on top of the thermostat housing or anywhere in the system that sits up high as it has to be a high point to bleed off any trapped air. usually there is a small relief valve that you unscrew until fluid runs out. sometimes youmust do this several times to get the job done.

When a cooling system has been drained, air is allowed to enter the system. Before refilling the radiator, remove a heater hose or the upper radiator hose and thermostat from the engine side. Then, pour the antifreeze / water mixture into the cooling system until it comes out of the heater hose nipple or thermostat housing. The idea is to vent the air from the system at the highest point possible. This way, air is purged form the system and only liquid is contained. When the liquid just starts to run out, replace the hose that was taken off and finish refilling the system. It's easy, it's free, and it works!And, it could save you from thousands of dollars in engine damage.

Maybe you have a stuck thermostat instead or a weak water pump. If it is a air in the system issue be sure to run the heater also and jack the front of the car up. Look for a bleeder on the thermostat housing or the highest point somewhere between the radiator anf engine. Let the engine cool for a bit. This sometimes displaces the air as it cools down and you just need to add more coolant

first useing a scanner or temp gun check the actual engine temp. if it is hot check for fan opperation, air lock in the cooling system water pump operation I think youll find the prblem to be the fan

water pumps are famous at around 80 thousand km I see these give up and quit pumping internally!also the thermostat you changed is it a MOPAR from dealer with a seal with a locking tab and ball bearing on top center these after market ones are just not the way to go! 22 years exp!! with mopar these after market ones just don't seem to bleed air out efficiently enough! you should see your coolant moving around if your pump is working and if you have a air lock due to a replica thermostat good luck bleeding the air out of your cooling system,.QUESTION to you have you any automotive experience as this???[problem you have.