jeepers2]
This is my first message.
Hope this helps many people
I have a 1997 Jeep cherokee xj.
For several months i have been pulling my hair out trying to find the problem of overheating.
Have replaced the following.
New radiator.
Top and bottom hoses.
Heater hoses.
Heater switch.
Thermostat.
operated without stat.
Flushed whole cooling system several times.
has been in a jeep dealership several times for full diagnostic and paid hundreds of dollars but they were NOT SUCCESSFUL.
I thought there must be something i have missed.
Then it came to me to try the ELECTRIC FAN THAT WAS WORKING GREAT.
I CHECKED TO SEE IF IT WAS ROTATING THE CORRECT DIRECTION.
WELL BUGGA ME IT WAS ROTATING THE OPPOSITE DIRECTION.
All it needed was the plug connector turned around.
The plug had been broken and taped up so you can connect it both ways.
So what was happening.
The engine was running at normal temperature, until the electric fan came on, then the heat from the engine was being pushed into the radiator and heating the radiator not cooling it. in the manner it was designed to hope this helps, its cured the problem.

 

Stock plug are fitted plugs, inside and out. Someone must have changed your plug, for it to be backwards?

 

Jeep Service Department: Sorry we couldn't fix a simple problem Sir, we expect hundreds of dollars for this now.