Check to see if the fan is actually coming on. (possible bad sensor) Also, check to be sure the thermostat isn't put in backwards. The Coolent system also needs to be bled, kinda like brakes. There are two bleeders. they are both on the top of the engine were the hoses connect. Mine were both broke off. They are dealer items only, cost $9 each. Open the one on the left as you fill the radiator. when anti freeze comes out with no air, close the valve. Start the car and open the one on your right(drivers side) let out air then close. I had to play around a bit with it but it is now running at the right temperature. Anti freeze sprays all over the engine but that can't be helped. Good-Luck
Low coolant, inoperative water pump, head gasket failure, inoperative radiator fan, etc.
There could be several things that will make your 2005 Grand Cherokee Limited overheat even if you just changed your radiator. There may be a head gasket blown.
low on water or bad thermostat
A bad thermostat can cause an overheat. A bad temp sensor can show an overheat when the temperature is normal.
Low coolant, inoperative radiator fan, stuck thermostat, slipping belt, failed water pump, etc.
Intake manifold gasket leak? (Never heard of a heat sensor). Many possibilities.
2000 Pontiac grand am se keeps over heating I changed the water pump, the thermostat, radiator cap, head, and it is still over heating. make sure thermostat is going the right way , spring gose to the motor
We don't know what relay you are referring to. Check your thermostat and radiator fan. Fluch out your cooling system.
I suspect that either your thermostat is plugged with debris from the radiator change or that the thermostat was replaced backwards. The spring side should be towards the block.
The radiator fan is not working,or not working properly,or possibly the thermostat is bad.But,usually if the thermostat is bad the engine would still overheat even if you speed up,so I would suggest testing the radiator cooling fans.
I do not have a Grand Marquis so my engine does not overheat! Fords and Ford products tend to overheat and always have! Let's check a few things. How long has it been since you changed the thermostat and the coolant? Those two things are the most likely culprits. What is the condition of the hoses? Have those been changed in the last several years? If you have changed the hoses, the thermostat, and the coolant, and it still overheats, then it is time to take it to a radiator shop and have the radiator rodded out. ========================================================== I have been driving Ford models for over 40 years and have never had an engine overheat . Don't forget the basics , engine cooling system level etcetera . Check for a fan clutch problem , a problem with the water pump not circulating . Ford also states that if you exceed 60% antifreeze in the distilled water / antifreeze mix that it could overheat in hot weather
no water in radiator? when is it over heating and in what conditions