So, my 2002 Pathfinder is running hot. Hoping y'all can help me out. I have already replaced the radiator, water pump and front thermostat. The fan clutch tests ok (depending on your interpretation of "free spinning", it does have some resistance). It only tries to run hot when it has a load (in drive mainly). Once I start moving again it cools back down. Sometimes it will start to heat up when traveling a long distance at slow speeds (like through two of the small towns I drive through daily both of which are under 40 mph). If I'm sitting in a drive thru or at a red light I shift to neutral and that seems to help. If it does it while moving I kick on the heater and that really helps, almost stops it entirely. I should also note that I do not have a fan cover installed and the rear thermostat (please don't make me change it!) has not been touched. Any ideas?