It is possible that water is getting to it, but I have checked and don't see it. It has snowed and when you open the hood some will always fall into the engine compartment. But that is usually to the rear of the engine not out in the middle.

I wasn't sure if WD-40 would be a good idea. Hence my request for advice. I never know for sure if there isn't some specific product to do the job. Seems most of the time I try WD-40 it doesn't stay where I put it.