[speedygonzales]

Apparently you need to understand a couple of things:

Vehicles with both mechanical cooling fans AND electrical cooling fans do not rely on the electrical cooling fans to cool the engine. The electrical cooling fan is for the AC NOT THE ENGINE.
While you probably have an electrical cooling fan problem, this is not the cause of your over heating problem.

We have to assume you did all the stuff you did because of the overheating problem since you put a header of overheating and listed each one of the things you did underneath it.

When you say you are overheating, we are not given any indication of what your are referring to. For example is overheating to you mean the gauge on the dash is going real high? Is the radiator boiling over? Is the coolant being pushed out the overflow tank? Referring to now not before you did all this useless stuff to the vehicle.

When you said in your original post you changed the temp sensor AND the temp switch. Did you mean the 2 temperature sensors that 1. feeds data to the PCM for control and 2. The sensor that feeds data to the gauge?

Does anything change when you drive the vehicle on the highway versus just sitting still?

Have you let the vehicle sit over night to cool and opened the radiator the next morning to see where the coolant level is?

Have you looked to see if there is flow in the radiator after the thermostat opens with the engine running?

One last item. You say you changed the radiator but never mentioned the cap. We sell radiators without caps so my question is are you using the old cap?

Understand the cap is critical to allow pressure to build up in the cooling system. Without this pressure, the boiling point of the coolant is lower than when it's pressurized. A bad cap may not allow enough pressure to build up and can be a cause of overheating.