My transmission revs up to 4th gear when in park. on 1992 Chrysler LeBaron

Right when I turn my car on, my transmission goes straight to fourth gear. When I put it in drive, it will drop down to a regular shift. The sound is embarrassing. I have no other problems with the transmission but this. I was told that it was stuck. How can this be fixed?

Asked by for the 1992 Chrysler LeBaron
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