72 c10 door lock question

[Speedracer39]

I have a 72 c10 and the drivers door has never locked with a key since I’ve owned it. I can lock it from the inside and it will unlock perfect from the outside with a key. I removed the door panel to take a better look. I can reach in and move the horseshoe looking piece by hand and it locks and unlocks perfectly with no binding. I removed the lock cylinder from the door and the prawl moves like it should with the key but with the key removed I can move the prawl by hand I’m thinking it shouldn’t and this is my problem. Any help would be appreciated.

[72-CH]

Good question, curious to know the answer as well before I decide to replace mine.

[LockDoc]

Originally Posted by Speedracer39

I have a 72 c10 and the drivers door has never locked with a key since I’ve owned it. I can lock it from the inside and it will unlock perfect from the outside with a key. I removed the door panel to take a better look. I can reach in and move the horseshoe looking piece by hand and it locks and unlocks perfectly with no binding. I removed the lock cylinder from the door and the prawl moves like it should with the key but with the key removed I can move the prawl by hand I’m thinking it shouldn’t and this is my problem. Any help would be appreciated.

The lock pawl may not be turning to the unlock position. When you insert the key the lock cylinder should turn 90º to the right and 90º to the left from that position. In some cases the spring and tumbler cover comes loose and prevents the cylinder from turning one direction or the other.. The lock pawl is supposed to turn back and forth a certain amount without the key inserted.

See if the key turns 90º each way from center first.

LockDoc

[Speedracer39]

The key will only turn to the right from 12 to 3 o’clock .

[LockDoc]

Originally Posted by Speedracer39

The key will only turn to the right from 12 to 3 o’clock .

That means that the cover has come loose inside the lock. The lock cylinder will have to be disassembled and the cover re-staked to fix the problem. if you have a locksmith in your area that specializes in automotive work he should be able to do that. If not I can do it for you if you want to send it to me. The cost would be $12.50 plus $3.00 postage back to you.

LockDoc

[Speedracer39]

Originally Posted by LockDoc

That means that the cover has come loose inside the lock. The lock cylinder will have to be disassembled and the cover re-staked to fix the problem. if you have a locksmith in your area that specializes in automotive work he should be able to do that. If not I can do it for you if you want to send it to me. The cost would be $12.50 plus $3.00 postage back to you.

LockDoc

Can you pm me your shipping info and if you have the time I’ll ship out the lock on Monday along with payment. Thanks

[LockDoc]

Originally Posted by Speedracer39

Can you pm me your shipping info and if you have the time I’ll ship out the lock on Monday along with payment. Thanks

PM sent.

LockDoc

[Speedracer39]

I sent my lock cylinder to LockDoc and he was able to repair my cylinder and it works like new again and as a bonus he made me 2 GM keys this was my first time using his service and just wanted to let others know he is a huge assist to this site and the service was very fast. Kenny

[LockDoc]

Originally Posted by Speedracer39

I sent my lock cylinder to LockDoc and he was able to repair my cylinder and it works like new again and as a bonus he made me 2 GM keys this was my first time using his service and just wanted to let others know he is a huge assist to this site and the service was very fast. Kenny

Thanks Kenny. Glad you are happy with the service, and thanks for the extra $.

LockDoc

[Ol Blue K20]

Nice!!