Hey every one been a while since I’ve been on here I got rid of my old 01 sportsman 500 and got a 99 sportsman diesel but I’m having a problem with the cooling fan it is not coming on I replace the sensor but no luck it is not boiling out of the reservoir but I did notice a small drip coming out of the hole on the right side at the base of the engine I’m guessing it’s a weep hole for the water pump any ideas and does the sensor on the engine work with the sensor on the radiator to make the fan come on because my overheat light will come on but my fan will not

Thanks in advance

PS I assume the sportsman gas and the sportsman diesel are similar in cooling systems