So it's been about a year that my 04 titan has been randomly overheating. I've changed out the temp sensor and the thermostat. I am completely loss. I've verified that the electrical fan in the front turns on and the engine driven fan is on as well. I've notice that there are people saying they swapped out the fan clutch and everything works great. If the fan clutch is bad does the fan still move or is it just still? How can you tell if the clutch is bad?