Electrical 95 Mustang , Lock Keeps Clicking Back Anf Forth

So i been looking around on how i can fix this which just happend randomly one day wile driving , the next day it was working normal but later that day again !! The lock keeps clicking back and forht locking and unlocking . Well now it just moves like it locking but it doesn't it just shakes sometimes. I change the acutators on the locks both side since ofcourse its old being 20 years old now . But no the shaking of the lock stoped but still does not resond to the press of the butten . But i know it works because sometimes wile pressing the lock down to lock it unlocks on its own. Anyone have any idea what i need to replace or fix ??

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So i change the acutator and the lock shakes and unlocks wheb i press the lock down only sometimes not all the time so i have to hold it down in order to lock the door, i notice that wile driving down bumpi roads the locks go crazzy clicking back and forth non stop or simply shaking , anyone have this problem or might have an idea of whats going on


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