Mitsubishi Montero 97 Overheating
 

Hi everyone,

I have a 97 Mitsubishi Montero Dakar 3.0L V12.

For some reason its overheating every now and then, its the only way to explain it. I can drive it for miles and it doesn't overheat and suddenly it overheats, it doesn't get all the way to the top but it stays in-between the middle and the top line. Also my A/C stops working. I changed the water pump and all the water lines, eliminated the thermostat since I live on a tropical Island and changed the fan clutch, what can I do???? I need advice, Thanks.