1979 300D.
My small vacuum leak has now gotten out of hand. Its my fault for not fixing it sooner. My question is, how do I take my pass. door apart, and once it is apart, what am I looking for? The first symptom was that when I engaged the drivers door lock to lock all doors, all would lock except the passenger. I would manually lock it. When I unlock all of them with the drivers door lock, all would unlock.

Now the only door that locks is the drivers, and the car will not turn off when I turn the ignition off. I have to pop the hood and pull up on the throttle linkage to the IP.

Any help is greatly appreciated.

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Marty Watts - Concord, NH
1979 300D NA - Maple Yellow - Palomino MB Tex