There just might be some type of Technical Service Bulletin (TSB) or Safety Recall that would address this problem and prescribe a "fix". Or this might be a problem that I have seen before, where I could tell you from 38 years of personal experience in the automotive repair field. However, it is impossible to find out, because you have not provided information to let anyone know what kind of car you are talking about....YEAR, MAKE, MODEL, ENGINE SIZE, TRANSMISSION TYPE, etc..
With the information that is available on this thread, I could probably help you better just telling you to go buy a lottery ticket.
The car is a 1987 Mercury Grand Marque engine 500 cc, automatic transmission. car has 83K actual miles