Hey Joel,

Sorry yes I do have power door locks and it is on a 1991 Syncro.

Sounds like I am in the same boat (van) as you were with the reaching around from the front door to unlock.

Where did you buy the replacement part?

Thanks so much, David

On Oct 8, 2009, at 1:51 PM, joel walker wrote:

>> My sliding door locks by itself every-time you close the door. It has >> progressively gotten worse for the pass 5 months. Going from only >> locking by itself every third time you close the door to locking >> every time you close the door. >> Is the lock mechanism worn out? >> Is there an adjustment to fix the problem? > > since you mentioned schematics, i'll assume you have electric locks. > which might be different ... but i had a similar problem many many > years ago on a 1971 bus, and it was a little spring inside the lock/ > latch box where the little tab/slider thingie is ... the little > black lever that you can push down/up to lock/unlock the door. > it's number 16 in the attached picture. > > anyway, i could not get inside the big latch/lock part (number 11 > in the picture ... the big brass-colored sorta-square-ish thing), > and would up having to get another one from a junkyard. luckily, > the key part wasn't involved in swapping it out and so the key lock/ > unlock still worked. > > what was happening was that the spring inside that is supposed to > lift the knob/tab/slider thingie was either broken or had gotten > too weak to lift it again or to keep it up. and any movement of the > door allowed it to fall and lock the door. it finally got so bad > that i would have to open the front door, reach around behind the > front passenger's seat and hold the knob/tab/slider thingie up > while moving the handle with the other hand. when i got tired of > doing that, i fixed it by replacing the big brass thing. > :) > > hope it helps. good luck! > joel <slider lock.jpg>