Drivers door will not unlock all the sudden.

[duece1951]

Put truck together yesterday. Drivers door will not unlock, it’s not the key cylinder or actuator. It physically will not unlock pulling up the lock. I have the door apart and the cylinder out. Nothing seems to be blocking it. The actuator is new. Worked fine until til I painted it. But even then it locked and unlocked after and during. Any idea what happened?

 

[legopnuematic]

Have you tried pushing the button on the exterior door handle first, then attempt to unlock?

My 76 is that way. Don’t know why (guessing wear in the various linkages).

 

[Edelbrock]

Put truck together yesterday. Drivers door will not unlock, it’s not the key cylinder or actuator. It physically will not unlock pulling up the lock. I have the door apart and the cylinder out. Nothing seems to be blocking it. The actuator is new. Worked fine until til I painted it. But even then it locked and unlocked after and during. Any idea what happened?

You could try stripping all the paint back off the truck, to see if that helps. I mean, it worked before you painted it, right?

Ha.

Seriously though, I would take the door panel off and reach inside with one hand to grab the lock knob rod. And then push up and down on the lock nob with the other hand. Then follow that rod to the next part, and wiggle the lock nob, and so on. Somewhere the free play stops. That's likely the culprit. Maybe some part of the system got pinched between something. Or a rod came off and got the end stuck in a screw hole or in some other spot. Just got to trace the problem by hand.