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79 auto door lock question

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Old Feb 18, 2012 | 07:42 AM
  #1  
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Default 79 auto door lock question

Took door panel off yesterday and thought we would see if we could figure out why the door locks do not work. They're 33 years old, sooooo

Where should I start, replace it all? Is there one part of the whole door locking mechanism that I should start with?

I want the car to lock! It makes me nervous when I take it somewhere I want to leave a vicious dog tied to it
Thanks in advance for your help guys!
P.s. I have my AIM and Chilton
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Old Feb 18, 2012 | 08:58 AM
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On my '79, the lock rod was completely fused with rust at the rotating joint. It is a pretty simple arrangement in there, not difficult to remove and service. Soaking mine in liquid wrench and working it, freed it up.
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Old Feb 18, 2012 | 09:27 AM
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yeah, on my 79, I too needed to shoot some oil on the lock actuator. I'd check to make sure you're getting power to both sides, and don't forget to check the ground, it's on the passenger door, bolted to the door near the front.
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Old Feb 18, 2012 | 10:39 AM
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Use the AIM diagrams and R&R the locking system. You can "replace it all" if you want, but there is no need to replace working parts.

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Old Feb 18, 2012 | 11:07 AM
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Awesome mine do no work either by I am not ready to deal with that yet. Very glad I opened this thread so I know where to start when I pull the panels to work on the locks. Learn something new about these cars everyday on this forum thanks to the consistently helpful members
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Old Feb 18, 2012 | 11:15 AM
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Default Ackkk!

Found the wires but not sure, bought a used AIM and it's missing the index page

It's a bundle of 5 wires, black, tan, grey, pink & purple is that it?
They have been cut and wrapped with electrical tape!

So I am guessing I am going to have to replace the complete harness for the door locks. How hard is it to replace?
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Old Feb 18, 2012 | 06:44 PM
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Default Alternative Solutions?

Anyone know if I have the correct wiring harness that I asked about for the door locks?
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Old Feb 18, 2012 | 08:26 PM
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My power locks work, they just don't lock the doors??
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Old Feb 19, 2012 | 11:35 AM
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Originally Posted by rebelee08
...bought a used AIM and it's missing the index page...
You don't need an index page. Thumb through the AIM until you find the segment on doors. UPC F01-12. Start on sheet 12. Take a close look at Sheet 15.

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Old Feb 19, 2012 | 11:45 AM
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Default Found it yesterday

Thanks found it yesterday. Saw the post that someone had about door locks on a 68. The reply gave instructions on how to give auto door locks and keyless entry with some pretty good detailed instructions. I would love to put an alarm on my car and being able to have keyless entry is awesome...not original but I really like the idea!
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