how to I change the thermostat in a 1994 ford probe

Remove the Air Intake Box so you can see below. There is a pipe running right into the bell housing where the thermostat is housed. There is one bolt that you need to remove (it is to the right, below the distributor). Then there are the other 12 mm bolts on the bell of the thermostat housing to remove. After removing those the thermostat should be able to come right out.