Electric door locks only partially operative.

[jtomasik]

I have a '99 F-250 Crew Cab. When operated electrically, the door locks will only lock or unlock some of the doors. I'm not sure whether it's mechanical or electrical. It sounds like it might be electrical, as the lock/unlock sound isn't very "positive", if you know what I mean.

Anyone know the circuit? Where's the relay? I'm thinking I've got a voltage drop somewhere, but I'm not sure.

[mschn99]

have someone else operate the switch for you. Watch the inop doors very closely. If they twitch like they want to open, your Door lock atcuators are weak or dead.......

[gcop]

If it works on some dors and not on others my guess ity would be mechanical, an actuator as Marc suggested.

[Baststen]

I have the same problem on my truck. what would be the price range to replace all four of the actuators. Exspensive? I hope not. and is it something that is easily installed. or is it a pain

[jtomasik]

According to the guy I bought the truck from, they worked "fine" before. So, I assumed it would be a problem to the system, not individual doors: some doors work, some don't.

I'll hunt the local junkyards and try to find an actuator. Pulling it out of the junkyard door will show me how not to ruin my door during the process. Hopefully I can track some down.

Oh, if anyone knows of a common relay (location) for the entire system, let me know. That still might have something to do with it...but maybe not.

[mschn99]

These actuators are prone to failure, and i would not waste my time by getting them from a junkyard just to find out those are weak too....

As far as price, they are not cheap, i dont remember an actual price but i want to say about 140 a piece for some reason. Instillation isnt too bad as long as your patient pulling the door latch out......

[jtomasik]

$140 apiece? Sheesh. Gotta look for something better 'n that. I have two known bad ones. What are the chances that suddenly both went bad the day after I bought it...yep, slim to none....one of the few things I didn't check.

[gcop]

Aftermarket actuators are about $8 each with rods and clamps, not hard to install at all. And they are stronger than the originals, you can also get heavy pull actualtors as well, they are loud but there is no doubt about it, when you hit the switch. If you have trouble finding some aftermarket ones, PM me, I have one or 2 kits around here I think.

[kamaleon]

Hello everyone... just got my second psd and it came with a few issues i got to address..

3 door actuators dorn work.. they seem liek they want move up/down but nothing....

can someone point us to an aftermarket door lock actuator?? i dont see my self spending almost $50 per actuator if there are other compatible choices..

[Clay Henry]

Originally Posted by gcop

Aftermarket actuators are about $8 each with rods and clamps, not hard to install at all. And they are stronger than the originals, you can also get heavy pull actualtors as well, they are loud but there is no doubt about it, when you hit the switch. If you have trouble finding some aftermarket ones, PM me, I have one or 2 kits around here I think.

I am needing one of these also i think. One of my locks will unlock fine but won't lock and it sounds like it's grinding rocks when i hit the switch to lock it.
Where do i find an after market actuator for an 03 model?