Why is my 95 Ford Probe overheating?

Answer 1

The simple answer is: failure of the cooling system or one of its parts.

Start by checking to see if you have enough coolant in the system. If it is leaking out, fix the leak. Check the water pump- it should have a "weep hole" next to the shaft. If there is coolant coming from the weep hole, the pump needs to be replaced. If the coolant is going somewhere other than on the ground, look for white smoke at the exhaust pipe- that's a sign of coolant getting into the cylinders, meaning cracked block, blown head gasket, or some other engine failure.

Check your fans. They should turn on if you lift the connector from the temperature sensor. No fans means no cooling at low speeds.

Start it up cold and check the hoses on the radiator. They should get warm after a few minutes, indicating that your thermostat is opening up and the water pump is working. If they stay cold, replace the thermostat (it's cheap), and try again.

If everything is working, have the radiator and cooling system flushed and pressure tested.