sticking solenoid common?

I have issue with generic aftermarket solenoid for trunk release. It's one of those round ones with cable.

It seems that once in a while it will "hold" on cable. I use AUX in Viper system and all is well except for those occasions. Cable itself hooked to mechanism and it's not binding, it's all good. There is prett strong return spring also, but it seems like there is something inside. I was thinking maybe my relay sticking, replaced but still same issue.

Did anybody have similar problem? If so, what brand/source will be good for solenoid? I got mine from eBay

you need to find out what is sticking - is it sticking mechanically or electronically.  If it is electronically you could have a bad relay (doesn't sound likely) or the output from the alarm could be sticking.

If it is a mechanical issue some WD40 may work, or you may simply have a bad unit.

Do you have any idea how much current it draws?  Are you using a standard 30A relay?  How do you "unstick" it?

Hmm... Didn't think about alarm output.. I fix it by pulling cable, I have to remove plastic cover for that. So, it's mechanical.

Yeah, I would agree it's mechanical.  If you can access the spring you may try to replace it with a bigger/stronger spring.  Of course you have to make sure you don't go too big, otherwise the coil won't be able to pull it in.

I think the wd40 idea would be the first thing I did.

Water Displacement, the 40th formula worked.

http://www.wd40.com/about-us/history/