Door lock doesn’t lock/unlock

My 68 xr7, like the rest of the car, has been through a rough life. I’m in the door replacing the regulator and I want to finally fix the door lock. I know this has been touched on elsewhere.

When I pull up and hold the door lock and. depress the door handle on the outside of the drivers side door, the door opens. But the door lock flops right back down when I let it go. Which keeps the door locked.

What’s wrong with my mechanism that the door lock won’t stay up in the unlocked position? I looked in the door and in the service manual but can’t find a remedy for my particular issue. I took a pick inside the door:

And made this video of me jiggling the door lock up and down:

Any help would be much appreciated!

I believe that there is a spring, or something, that keeps presure on the mechanism that holds the lock open or closed.

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There are three springs in each door latch. The springs often rust out causing the issue you describe. You can either make springs from new ones at the hardware store or replace the latch.

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Thanks! Silly question but I presume that to replace the springs I have to remove the door latch itself? I don’t see another way.

My drivers door lock is hard to open. It feels like the rod is bowing in the door but it still works with a bit of effort. I don’t really want to pop off the door card for fear of it getting ruined. Any idea

I would not know how to work on the latch without removing it.

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Success! I removed it. I can see 2 of the 3 springs which appear to be ‘springy’ enough.

There’s a third, by my thumb that looks like it should be a part of the lock/unlock mechanism, sandwiched between 2 plates, that appears to not be doing anything. Is it serviceable?

Specifically, the small circular spring… i can’t tell how it is supposed to be attached… if I could get a photo or illustration then I could probably fudge a hardware store fix.

Or could it be something else?




Created a new spring after a run to HW store and modifying a spring I bought. Mechanism works now. A little hard to see but here it is installed.

I had to take out both door latches to see the difference. You might have to also.

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If the repair works great.

Neighbor down the street with a 68 bronco with latch mechanism not working.

Took it out clean and lubricated still with issues.

Found the right part online.

She ordered and husband replaced

No more issues.

so far so good!