The bigger the radiator the cooler the engine. Good anti freeze also helps as does good air flow.
With water.
Replace the thermostat
There is a good possibility the relay is stuck.
Vehicle running hot? and fan trying to cool it down Bad temperature sensor?
No. Running an air conditioner on fan does not cost as much as running on cool.
They're........ good. On second thought, they're cool.
YES fords are junkie
ON A 91 2.8 v6 2wd, it is on the driver side of the engine block. It is a tight fit to get your hand between the exhaust and the engine, so do it when its cool.
You are better off stroking it. The 400 has 4, and 1/8th inch bore. It also has siamese cylinders to accomodate the larger bore. And, the water does not use water to cool. It has steam holes, as the cylinders are too thin to run watrer, so, remember to have your cylinder heads drilled out for the block. To bore that motor, you would have to sleeve the cylinders, then bore them out. Very expensive.
the drain plug (which is plastic) is a couple of inches from the bottom of the radiator on the passenger side of the vehicle. You may have to buy a replacement plug beforehand in case it doesn't seal properly after reinstalling it. Do this when the car is cool and dont run cold water into a hot block. Also, don't leave it running after it drains (obviously!)
Dex-Cool
Look at compressor when engine running-You should be able to see if compressor clutch is pulling in. Try with A/C on and then with A/C off to see difference