Hello. Fortunately for you, I have a Mercury Topaz 94. The twin brother of your car. The problem of the transmission you describe is very common in these cars. Inside the tray there is an accumulator piston that over time tends to not work well. Now, you don't tell us if the problem is with the car in cold or if when it is heated. Generally when the failure occurs it is cold and once the normal operating temperature of the transmission is reached, this ceases. It is solved, if this is your case with a simple additive. In my country, ATP-205 is used.