Driver side of the motor behind the distributor and below the air intake hose. You will see the hose running from the radiator. There will be 12mm bolts that hold the cover and the thermostat will be in there.
try this link it may help keep in mind ford probe's have Mazda engine's
The thermostat is located on the right side of the engine looking in, in between the intake manifold and the air filter box, underneath the wiring. This is in a 1994 Ford Probe GT 6 cylinder
the thermostat is located under the thermostat housing on the front of the motor where the top rad hose connects to.
Yes a bad thermostat would cause overheating in any car. A thermostat regulates the temperature.
follow the coolant hose that goes under the distributor.
On a 1990 Ford Probe with a 3.0L V6 engine, the thermostat is located in the engine's coolant passage, which is typically found at the junction of the upper radiator hose and the engine block. To access it, you will need to remove the upper radiator hose and the thermostat housing. Once the housing is removed, the thermostat can be taken out for inspection or replacement.
Follow the bottom Radiator hose and it is behind the distributor on the drivers side.
Check the thermostat, also there could be a heater core issue...
It may be the water pump.
It is in the housing at the engine end of the upper rad hose. When replacing it make sure the spring on the thermostat is toward the engine.
Ford Probe was created in 1989.
Follow the bottom radiator hose and it will lead you under the distributor and you will just have to take the two 12mm bolts out and there it is.