hi i'm a newbie i have a 02 jeep grand Cherokee 4.0 6cyl .its overheating .fan not going on ,i changed the relay, fan motor ,does this have a coolant fan sensor .or does the computer turn the fan on .thanks any help would be greatly appreciated

 

The computer turns the fan on at around 217 degrees, but the fan should come on with the A/C no matter how hot the engine is.

 

thank you very much Bustedback for the quick reply ,that's the info i was looking for .thanks