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Old 02-20-2021, 06:23 PM   #1
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Default Door latch and door lock jammed up - help!

Please watch this video I made so you can see the issue:

https://www.youtube.com/watch?v=eovnAo7AIj0

When the door latch is closed, the exterior handle works fine, but not the interior handle.

When the lock is engaged, neither the exterior key turn, nor the vertical lock button can unlock it unless I help turn part of the lock mechanism inside the door with a screwdriver.

I really don't want to take out the whole lock mechanism because I'm afraid I'll break some plastic clips or won't be able to get all these little metal bars back into place correctly.
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Old 02-20-2021, 09:04 PM   #2
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OK, can't help with the inside door mech, but those locks are notorious for failing. Both of mine failed, 15 years ago and I can't/don't lock the truck anymore. Of course, I don't leave ANYTHING in there I don't mind missing, since it's no longer my main drive.

At that time the mech I used was known in the area (CO) for his abilities with D21's. He also had the biggest Nissan junk yard in the area, at the time. He said that the little plastic pieces were prone to failure and the only way to repair it was to totally disassemble and rebuild the mechanism with new plastic parts.

HTH... sorry to have to share this.
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Old 02-21-2021, 12:54 AM   #3
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The clips are still available if needed, but I highly recommend removing the assembly to clean and lubricate it. It’s been in there 35 years gathering filth.
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Old 02-21-2021, 02:07 AM   #4
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Have to keep these things good and lubed because they will wear cuts and stop working.
Try putting as much silicone lube on there as possible. Maybe you will get lucky.
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Old 02-21-2021, 05:32 AM   #5
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I had a failure last year. I went to the pull a part and stocked up on those little plastic clips.
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Old 02-22-2021, 05:19 AM   #6
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mines doing this on my driver side, gotta pull the inside door handle like 5-8 times before it opens. it’s just a little plastic piece that’s worn out?
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Old 02-22-2021, 10:59 AM   #7
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Quote:
Originally Posted by EF2 View Post
mines doing this on my driver side, gotta pull the inside door handle like 5-8 times before it opens. itís just a little plastic piece thatís worn out?
Possibly. Generally itís a dirty, gummed up mechanism that places stress on the old plastic clips which leads to failure. Itís best to just tear in there to have a look at whatís going on. Remove the latch and clean it with brake cleaner and brushes. Then lube and reinstall.
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Old 02-22-2021, 09:17 PM   #8
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Quote:
Originally Posted by cadillacdude1975 View Post
I had a failure last year. I went to the pull a part and stocked up on those little plastic clips.
Do you remember where you got them? Got any other info? PN?
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Old 02-22-2021, 11:29 PM   #9
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if your door does not unlock with a key...
yellow clip 80552-34A00
white spreader clip 80534-34A05
pretty sure these are in a part number sticky.. I think they are anyway
hope it helps!!
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Old 02-22-2021, 11:55 PM   #10
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Quote:
Originally Posted by 89'HBV6 View Post
Do you remember where you got them? Got any other info? PN?
I just took the inner latch rod and clips. The piece that usually breaks goes from the outer handle down to the latch release bar. If you have big bear paws, it is fun to change.
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