Several thoughts:

1) Wells seems to be the most common brand of these out there. Not sure how good they are, but I've used them for years with really no problems.

2) Are you getting a good ground? Just having a fender well bolted to the car may not be enough. Try using some of the small, braided straps between the fender wells and the frame. Make the grounds clean and tight, as well as the solenoid to fenderwell mount. It is a ground source.

What do you mean by hanging up? Do they quit working or what?


Don