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I have a similar problem, My drivers side front and back work fine, it's my right side front and back that move but don't quit lock or unlock.

Each door has a motor that operates the door lock mechanism when the door lock button or the remote lock button is pushed. If the door lock moves a little but not enough to lock or unlock the door, then either the motor is not working fully or it is partially jammed, or the door lock mechanism is binding and the motor can't move it fully. Remove the door lock trim panel and check all the components involved in the door lock process until you find the problem.

I had the same problem in my 1999 Sub. The factory uses rivits to hold the door lock actuators in place. Over many uses the rivits elongate and the actuator travel is not enough to over come the longer distance. Try replacing the rivits with short screws. Short so they do not interfear with other stuff that moves in the door.

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2010-07-23 20:00:52
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Q: How do you fix auto door locks on 99 suburban Front doors work back don't When you push unlock button the back door locks move but don't quite lock or unlock Help?
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