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Thread: Central locking problems - Finally a solution! Reply to Thread
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Topic Review (Newest First)
04-14-2015 08:55 PM
amc49 Can you read?

Or...............'hard to get lube fully inside them.'

Also, WD40 turns into like bubblegum when it dries out and sticks things up even worse when it does, they don't tell you that on the can of course..................the parts you spray with WD are not the errant ones that lie deeper inside, if you flood it you MIGHT get to them but you might not. And once you've put it in there, there is no getting it back out when it starts gumming the works up even worse.

The only sure cure is taking the latch completely apart and thoroughly greasing all the parts inside. To do that you will be bending tabs and drilling out rivets, BTDT.
04-13-2015 03:25 PM
Gers1989 Could I spray wd40 on it
04-13-2015 09:47 AM
amc49 Look at the latch that does not work when you do that, the one most likely causing all the trouble. Fix it and problem often fixed. New latch assembly unless you figure out how to lube it, the latches cannot be taken apart without drilling rivets out and hard to get lube fully inside them. There are like two compartments inside that are sealed off from the rest.
04-13-2015 06:57 AM
Gers1989 Hi I have a focus 2001 zetec my central locking is playing up it double locks and means it is unlocked unless I put key in door and sometimes when it does lock it only looks 3 doors instead of all of them has any one had this or know if it is.a easy fix
06-23-2014 04:21 PM
mistrymangal
Quote:
Originally Posted by exsodius View Post
Problem solved!

My central lock has worked fine for a month now. Even when its raining or are cold.

What i found after cleaning the lock mechanism was that it has a microswitch like in your PC mouse buttoms. In picture you see the black switch with the red dot on it. This red dot is a water proof rubber seal for the switch pin. This red seal made the switch pin hang when it was cold. In my case it was full of grease. I measured the switch with a multimeter. When pin is pushed inside the doors are locked, when the pin is out the doors are open. So what happend was that when unlocking the car the switch stayed closed. And the other doors sent a negative signal that was telling the driverdoor that they were unlocked. Then you had two negative signals making a short circuit. And then all doors stopped working. So i believe many focuses have this problem. And have probaly changed the whole unit with a new one. But that is expensive.....

Tip: Clean and spray microswitch with WD-40 if you have this problem.
Is this photo taken after removing the inside panel? I still trying to figure out where this is. I too have exactly the same problem on my Ford Focus.
06-16-2014 05:51 PM
amc49 I almost wrecked a $600 set of connecting rods once by spraying them liberally, the stuff reduced down to a dried bubblegum type goo that no solvent on earth would touch. Finally had to laboriously hand rub it off, it took forever.

Pop as well got the bright idea on one of the nine second drag cars to spray a small shot of WD in plug holes every time plugs were pulled. That engine reduced the stuff down to scar up the cylinder walls weirdly, we stopped doing it and never again had the issue with same type and part engine builds. I like using it for certain things but nothing for long periods of time. I've had it stick up lock tumblers before too but reshooting more in seems to re-break it back down to go back to working again.
06-16-2014 02:46 AM
sailor Some like the stuff, I've had good luck with it over the years. (WD40)

Driver's door got the treatment about 4 yrs.ago when the handle got loose (pull out far loosely & barely opened the door). Took pulling the inner panel for access, still working fine.
06-16-2014 12:02 AM
amc49 Wait till you people see what WD40 turns into once it has cooked all the VOC out of it, or very sticky bubblegum...................good way to make the latch even worse one year out.

There are TWO limit switches inside the latch and two other compartments that are virtually impossible to squirt lubricant into. Even using a whole can of WD40. There is an electric motor that if you get WD40 into, will pretty much be scrap once the lube dries out to get very sticky. Luckily they seal that one up pretty much water tight.
06-15-2014 02:02 PM
mervynskidmore I've had no central locking for the past 2 years so I tried spraying WD40 through the hole and it works now. The only issue is that when opening, only the drivers or passengers door will open, I was hoping all doors would open? It's so long since it worked that I've forgotten. I'm using keyed entry as it's the base model.
05-09-2014 08:06 AM
boswit Thanks Exsodius!
I had the same problem and was about to change the motor and found this fix. Worked for me and saved me a lot of hassle.
Thanks again.
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