Replaced a bad door pin switch last year with a replacement (new) bought from an Ebay seller. Switch is now sticking and no amount of lube is making it not stick. Who sells a good replacement pin switch? This is for a '94.

 

All of the more "responsible" resellers have mentioned quality issues with their stock in the not so recent past. I believe I'd contact some of the more responsible resellers and ask if the quality has improved. If they tell you they've NEVER had issues I'd move on to another.

One or two of them I believe actually pulled stock.

Ask many questions from whoever you choose! Ask for maybe an extended warranty for the purchase mentioning you've had previous issues.

 

what exact pin switch are you talking about? is it the "door ajar" switch on the door jamb, or the pin switch mounted on the hinge pillar? if its the black plastic "door ajar" switch mounted on the door jamb, I think in have a simple fix. is this the switch?

 

OP's '94 has only ONE!!!

 

one what? so, are you saying there is no pin switch mounted on the hinge pillar, or there's no "door ajar" switch, or only one door has a switch or switches? what exactly are you saying? I've only owned one late model C4 (1996), and didn't realize there was a difference - guess i'm just not a smart as you! if we are indeed talking about the plastic "door ajar" switch, I still have a possible fix...

 

2 switches through '89 - introduction of CCM in '90 removed the switch on hinge pillar.

I don't quite get the sarcasm!

 

That would be the switch in question (it's mounted in the rear of the door).

 

I recently fixed my OE switches on my 85 . there is a center button within a barrel that slides in and out of the switch housing. if you look closely at the outer barrel sleeve, you'll see two small notches -



that notch end seems to be the problem. it looks like over time the end mushrooms out just enough, that when the switch is depressed, it sticks a bit - it doesn't take too much to make the assembly inoperative. not sure why, but that seems to be the issue. it might have something to do with the center button going into a set position when the switch is first installed.

anyway, my solution (and this worked for me) - take some 400-600 wet and dry sandpaper, and lightly dress down the (notched) end of the barrel. clean it up a bit, and maybe follow up with some 800-1000 grit. keep everything clean, and smooth it down as much as possible. follow up with a light coating of silicone grease (pure, laboratory grade). exercise the switch barrel in and out several time. do not lube with anything in an aerosol can, nothing petroleum based, and definitely not WD-40.

as I said, this seems to have worked on my 85.

 

Interesting. Can't hurt, will give it a shot and report back. Thanks.