low coolant levels
If the coolant is brown, it has broken down and needs replaced. You could also have a failed thermostat, plugged radiator, inoperative fans,...........
If the radiator fan is not working, it will overheat. One way to make sure fan is working is to turn on the a/c. My mechanic said the fan should come on when the a/c is on.
If the Chevy Celebrity radiator is smaller that the Saturn radiator it might well overheat from not enough cooling capacity. If the Chevy Celebrity radiator is the same size or larger than the Saturn radiator I would think it would not over heat.
The radiator cooling fan is most likely not working.
Low coolant, stuck thermostat, failed waterpump, plugged radiator, inoperative radiator fans, etc.
Check the fan thermostat.
A cracked radiator would leak the fluid out, leaving no coolant for your engine which would cause your engine to overheat and be destroyed pretty quickly. So the answer is NO.
Bad thermostat, plugged radiator, blown head gasket in order of expense.
There are a few reasons why a 1992 Jeep Wrangler 2.4 liter would overheat. Some of the reasons are low antifreeze levels, radiator leaks, or fan malfunction.
it is possible your radiator is clogged
Blockage in the cooling system No or little fluid in the cooling system Radiator fan not working
The most likely cause is an inoperative radiator fan.