when its warm out sometimes my motor will run a little warm....the next digital tach on the temp guage from the half way mark....i got a koyo radiator and i know the thermostat is good....but i think that it is the radiator fan....does not work...never seen it nor heard it come on....the fuse is good...os there any way to check to see if the motor on the fan is any good....so when it runs a little warm....i turn the heat on and it cools right down to the half way mark.......any suggestions?

 

Try checking your auxillary fan switch, If I'm not mistaken it's located on the thermostat housing. Or try jumping the fan directly to the battery, make sure you have the right wire going to the right battery terminal cuz you can short the fan out for good.

 

Check your coolant and make sure you don't have any air in the lines