I think its the cluster but not sure cause I change all the hose and thermostats. Radiator is good, fan blowing good made my own switch to make it run when i start the car. I thought it could be head gasket but i see no water in oil or white smoke or any defect will cause it to over heat I have drive it all the way to the H and no smoke coming out of the hood so my clue is maybe the cluster f**k up or maybe a sensor. Any idea would help me check thank you.