Passenger door power lock intermittently works

Help Support SportTrac.org:

kmartin

Member
1st Gen Owner
V6 Engine
4 Wheel Drive
Joined
Jan 19, 2019
Messages
41
Reaction score
14
Location
New Holland, PA
My 04 passenger power door lock intermittently works. At first I would occasionally hear this du-du-du-du sound when locking or unlocking. What could it be?
 

swshawaii

Well-Known Member
1st Gen Owner
V6 Engine
2 Wheel Drive
Joined
Feb 27, 2009
Messages
5,311
Reaction score
220
Location
Kailua-Oahu, Hawaii
Likely the sound of stripped and slipping nylon gears in the lock actuator motor. Usually described as a "buzzing" sound. I've replaced three of four actuators and both front latches since buying my truck used with 46,000 miles in 2009. Door locks are NOT one of Ford Explorer's stronger points.

IF the actuator is the issue this may be of interest:
 

kmartin

Member
1st Gen Owner
V6 Engine
4 Wheel Drive
Joined
Jan 19, 2019
Messages
41
Reaction score
14
Location
New Holland, PA
Ok, likely will be that. Sounds like it. Any aftermarket that is good? Anything I should just replace while having it apart? Any videos?
 

swshawaii

Well-Known Member
1st Gen Owner
V6 Engine
2 Wheel Drive
Joined
Feb 27, 2009
Messages
5,311
Reaction score
220
Location
Kailua-Oahu, Hawaii
Remove the door panel and see if your faulty actuator has a removable rod. If so, prying the old actuator out of the bracket and replacing it is MUCH easier than complete disassembly. Swap only the black actuator motor. For easier access remove the glass run channel and disconnect the attached wiring clip.
 
Last edited:

kmartin

Member
1st Gen Owner
V6 Engine
4 Wheel Drive
Joined
Jan 19, 2019
Messages
41
Reaction score
14
Location
New Holland, PA
Remove the door panel and see if your faulty actuator has a removable rod. If so, prying the old actuator out of the bracket and replacing it is MUCH easier than complete disassembly. Swap only the black actuator motor. For easier access remove the glass run channel and attached wiring. Here's a Motorcraft actuator that will work IF yours has a removable rod.

Is there any videos for our vehicles to do this?
 

kmartin

Member
1st Gen Owner
V6 Engine
4 Wheel Drive
Joined
Jan 19, 2019
Messages
41
Reaction score
14
Location
New Holland, PA
Likely the sound of stripped and slipping nylon gears in the lock actuator motor. Usually described as a "buzzing" sound. I've replaced three of four actuators and both front latches since buying my truck used with 46,000 miles in 2009. Door locks are NOT one of Ford Explorer's stronger points.

IF the actuator is the issue this may be of interest:
So what are the weak points in the locks?
 

swshawaii

Well-Known Member
1st Gen Owner
V6 Engine
2 Wheel Drive
Joined
Feb 27, 2009
Messages
5,311
Reaction score
220
Location
Kailua-Oahu, Hawaii
Not so much the lock cylinders. It's the door latches. They all have a tiny spring that breaks preventing the power locks to lock or unlock. Shine a light into the passenger latch and look for a broken spring. Also look in the bottom of the door for spring remnants when you remove the panel.
https://www.google.com/search?q=exp...hUKEwjnwove-ZXxAhXOAjQIHSZyDzEQ_AUoAHoECAEQAA

Pretty sure you have a tired actuator if you hear it buzzing.
 

kmartin

Member
1st Gen Owner
V6 Engine
4 Wheel Drive
Joined
Jan 19, 2019
Messages
41
Reaction score
14
Location
New Holland, PA
Not so much the lock cylinders. It's the door latches. They all have a tiny spring that breaks preventing the power locks to lock or unlock. Shine a light into the passenger latch and look for a broken spring. Also look in the bottom of the door for spring remnants when you remove the panel.
https://www.google.com/search?q=exp...hUKEwjnwove-ZXxAhXOAjQIHSZyDzEQ_AUoAHoECAEQAA

Pretty sure you have a tired actuator if you hear it buzzing.
Yes, from your description, it sounds like the actuator. But shesh, why did I choose to keep the sport trac? Sounds like it was a mistake. It did well the first 100,000 miles. Since crossing over, it is showing its true colors.
 

Emory

Member
2nd Gen Owner
V8 Engine
4 Wheel Drive
Joined
Sep 23, 2019
Messages
32
Reaction score
11
Location
Fredericksburg, Va.
Yes, from your description, it sounds like the actuator. But shesh, why did I choose to keep the sport trac? Sounds like it was a mistake. It did well the first 100,000 miles. Since crossing over, it is showing its true colors.
Um...yeah....it's that 100K thing huh? Replace an actuator of buy a new Ranger for $40K and up. Sorry, but I'll keep fixing my ST and live with NO truck payments thank you.
 
Joined
Jun 5, 2021
Messages
1
Reaction score
0
Location
Alabama
^ Google is your friend.

Still say prying the old actuator from the bracket is a MUCH easier repair. Here to help if I can. LMK.
Just saw this thread and I’m having the same problem on my 05 but on the driver door. It was intermittent at first and would lock halfway but not actually lock. Now it won’t even try to lock or unlock.When I put the key in and turn it it will slip and won’t lock or unlock on occasion. Thoughts? I’m gonna tear into it soon but I wanna know what to look for.
 

swshawaii

Well-Known Member
1st Gen Owner
V6 Engine
2 Wheel Drive
Joined
Feb 27, 2009
Messages
5,311
Reaction score
220
Location
Kailua-Oahu, Hawaii
@Have An Upvote

Yours may be as simple as a disconnected or broken plastic connector. Once the door panel is removed, check the connector on the metal rod to the key cylinder. If OK, check ALL other connectors and rods leading to the door latch. Have a strong flashlight handy and be careful around many sharp edges. Keep posted.
 

EddieS'04

Well-Known Member
1st Gen Owner
V6 Engine
2 Wheel Drive
Joined
Sep 26, 2004
Messages
17,655
Reaction score
250
Location
Pasadena, TX
My driver door lock has done this for years. The second fob bump always takes care of it. I know when it happens, 'cause of the buzzing noise. When I have to start using the key. I will fix it...;)
 
Top