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Electrical Are there any aftermarket door lock actuators that actually work?

  • Thread starter Thread starter 89notchDude
  • Start date Start date Nov 24, 2024

89notchDude

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Apr 11, 2022
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Nov 24, 2024
#1
  • Nov 24, 2024
  • #1
I ordered 2 door lock actuators from LMR which are absolute junk. Each one has the same issue. There is not enough force to lock and unlock the doors. (btw the locking mechanisms are all lubed up and I could manually open and lock it with a feather if need be). The other issue is the actuator motor itself has so much physical resistance, that once installed, I cant even lock/unlock using the door lock rod. Are there any brands that are decent? I dont want to hunt down and pay premium money for a 40 year old device. Thanks in advance.
 

JD1964

there is enough sticking out to grab on to
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#2
  • Nov 24, 2024
  • #2
With some moderate fabrication skills you can retrofit these. They’re very powerful linear motors. I’ve done my passenger side already. I need to do the drivers side too. Someone has a write up tutorial on here about it but I can’t remember who off the top of my head.

Amazon.com
 
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nickyb

I gotta say i never painted my nuts, Never Ever
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#3
  • Nov 24, 2024
  • #3
The late(great) J.RichKer did the write up,its awsome.
 
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89notchDude

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#4
  • Nov 24, 2024
  • #4
JD1964 said:
With some moderate fabrication skills you can retrofit these. They’re very powerful linear motors. I’ve done my passenger side already. I need to do the drivers side too. Someone has a write up tutorial on here about it but I can’t remember who off the top of my head.

Amazon.com
Click to expand...
Thanks guys... I know what ill be doing this winter......
 

nickyb

I gotta say i never painted my nuts, Never Ever
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#5
  • Nov 24, 2024
  • #5
Here it is.
 

Attachments

  • Door lock actuator fix.pdf
    Door lock actuator fix.pdf
    592 KB · Views: 223
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Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
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Nov 24, 2024
#6
  • Nov 24, 2024
  • #6
The Dorman ones are thought to be the “best” aftermarket. I had one fail and the LMR one wouldn’t work unless the car was running (12v vs 14v).

Found an NOS one on eBay and went that route.
 

Cheapskate207

The left one hangs a little lower
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#7
  • Nov 24, 2024
  • #7
I used the ones @JD1964 linked. They work great and have been installed for years. User Gravydog did a little write up in his build thread.
Gravydog said:
So tonight was all about getting the power locks to work. I read thru several threads and saw @jrichker had a solution using cheap universal door lock actuators. So after a little searching, I found a kit on Amazon for $10. jrichker did a very detailed write up, and fabricated some nice pieces to put these in almost like a factory installation. I however did none of that, I'm much too lazy, and decided to use the actuator rods and clamps in the kit and come up with an alternative method. No step by step write up from me, but here are some pics, I did ziptie the wires neatly after the pictures were taken.
They work like a charm, so for $10 I'm happy.
Click to expand...
 

89notchDude

Active Member
Apr 11, 2022
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central NJ
Nov 25, 2024
#8
  • Nov 25, 2024
  • #8
You guys rock... I ordered the ones from the amazon link above....I'm gonna play around with the fabrication to make it all work...Ill try and get some detailed pics posted.
 
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cbac89

Member
Sep 11, 2024
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Raleigh, NC
Nov 29, 2024
#9
  • Nov 29, 2024
  • #9
89notchDude said:
I ordered 2 door lock actuators from LMR which are absolute junk. Each one has the same issue. There is not enough force to lock and unlock the doors. (btw the locking mechanisms are all lubed up and I could manually open and lock it with a feather if need be). The other issue is the actuator motor itself has so much physical resistance, that once installed, I cant even lock/unlock using the door lock rod. Are there any brands that are decent? I dont want to hunt down and pay premium money for a 40 year old device. Thanks in advance.
Click to expand...
Ive been working on mine all day and was having the same issue, i couldn't move the rod at all once the actuators were installed. Then i discovered that you need to fully extend the actuator before you install it, and then it works, otherwise its locked up. Unfortunately, you do need a full 12-14 v to make them work, which means no remote opener, which sucks.
I managed to get both doors to lock , but they dont unlock, so now im chasing this, im thinking it may be one of the switches since they are in parallel. Good luck.
 
V

vindieseljetta

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Nov 30, 2024
#10
  • Nov 30, 2024
  • #10
Dorman from rockauto
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
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Nov 30, 2024
#11
  • Nov 30, 2024
  • #11
Voltage Up Converter:

Amazon.com
 

FastDriver

I was uncomfortably high & wearing a helmet
SN Certified Technician
Sep 5, 2001
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Dec 2, 2024
#12
  • Dec 2, 2024
  • #12
I'm gonna say it... F()*% LMR for continuing to sell that junk. I took great care on install to clean, grease, WD40.. yadda yadda... The LMR actuators can't move out of their own way. Get the Dormans. Here's my post on them. LMR has obviously been receiving these complaints for years and years, and acting like they don't know... Get the Dormans, and move on with life. They're working great in black jack. Here's the link to where I figured this out. You can also find the confusion I had after the brand new LMR versions failed me.

Post in thread 'Black Jack: Fixing torque steer'

Jun 20, 2024
Guys, after almost 2 years of fiddle-f*$^#ing around with the LMR door locks, I noticed someone on FB mention the same problem and that they had much better luck with dorman actuators. They were right! I just got done installing the Dormans and it's night and day. Happy to have functional door locks again. I bought a small stock of them, because if Dorman ever stops making 'em, I want enough to last me a long time. Went ahead and did the window bushings and greased everything up again while I was in there.
  • FastDriver
 
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