It could be your serpentine belt, thermostat or water pump.
Low coolant? Cooling fans not working? Water pump not circulating coolant? Radiator plugged or restricted?
Renegade - 1992 Five Minutes to Midnight 5-4 was released on: USA: 4 October 1996
2 minutes
Is your radiator full? Have you got a leaking head gasket?
You must check the coolant level in your radiator and reservoir. Low coolant levels can lead to overheating. If it's low, you may have a coolant leak that needs to be repaired. Good luck!
Possibly thermostat is slow in opening.
Did you do or have someone do something with the radiator system, if yes then the system isn't burped right. You have to remove the bolt in the front top of the intake manifold and keep filling to the top while squeezing the radiator hose to get the air bubbles out etc.
Check coolant level Perhaps thermostat is not opening to allow coolant to flow
With a scan tool, or unhook the battery for 5 minutes.With a scan tool, or unhook the battery for 5 minutes.
If you have a 4-cylinder, about 20 minutes. 90 minutes if you have the V6.
you need to check cooling fans with ac on
Water pumps are totally mechanical; if they don't leak or make noise they are OK. Period. The stat should be at the lower end of the top radiator hose within the water outlet, but before replacing it try this: remove the rad cap and allow engine to run for about 20 minutes checking the coolant level during this time and adding as necessary. Bleeding trapped air out of your system may be all that you need to do. If it still overheats change the stat. I hope this helps you.