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My power door locks are not working like they should. I have replaced the actuators with new ones. They have power and do move, but it seems like the latching mechanism moves to far and the actuators dont have the strength to push it back to unlock. What could be the problem? I think I've also seen a post (cant find it) that someone moved the rods to the outside of the door frame? Oh and my alternator just crapped out, could it be that the actuators weren't getting enough voltage to operate?
Thanks
Last edited by Fireslayer26; Oct 5, 2004 at 06:03 PM.
If you have new actuators, I can think of two things that might be the problem. One, as you are already thinking, is that you are not getting enough current to the actuator. This could be caused either by a bad alternator/battery, but it could also be old, corroded terminals in the harness. You can try cleaning the contacts on the switches. Don't know what year you have, but on mine, you take the door panel off and then pry off the white plastic terminal with a flat tip screw driver. (make sure the battery is disconnected, it's super easy to short it out with the screwdriver) You can use some very fine steel wool to clean the posts. I use a small dremel deburring bit (by hand, don't use the drill) to get down into the female portion.
The second problem is friction. The mecanism is probably pretty worn, and may have a lot of built up crud in it. I sprayed the crap out of it with WD40 and cleaned it up as best I could. Worked it by hand to get the WD40 in, and the crud out.
make sure your door hinge pins are not worn out, i replaced mine and the door locks work better, not perfect but usable now. you can tell if the pins are worn by opening the door half way and then try wiggling the door up and down, my drivers side had lots of play with the passenger side with way less.
You say they had power - if you really want to know how much just put a voltmeter across the wires. Try to get as close to the actuator as possible. You should have close to battery voltage (something like 11V or more with car off and 13V or more with car on). If you only have like 6V then something in the path is resisitive and reducing the amount of current to the solenoids (bad relay, bad electrical connection, bad switch, break in a wire somewhere...) It could also be your theft deterent module if your car has one.