Overheating

Hello, the fan is kicking on to cool down the coolant and act as air flow when sitting still or going slow in traffic instead of driving at speed allowing air flow from outside through the radiator. Have you checked for air pockets in the cooling system? After performing all those repairs, it could be that there are air pockets that need to be purged out. If you are hearing the fan engage, it would seem that the clutch is working as designed. Unless it is not blowing air fast enough. When you are cruising at highway speeds, is your engine always at proper operating temperature?