This past fall my Grizz started to overheat. It would cool down if i went over 30mph. Yesterday I was plowing my driveway and it started to overheat again.
A few days before the snow fell, I took out the radiator and cleaned it out; it was caked with mud. I reinstalled it with fresh coolant. But she’s still overheating. The fan does work.
And thoughts as to what else i should be looking at? Waterpump maybe?

Thanks everybody.
Todd