When I change my spark plugs I usually like to put a thin bead of silicone on the spark plug cover. That way the spark plug cover is waterproof from the top at least. The back is still open which allows any moisture to escape as it dries, but you won't get water in the back from washing your engine. Just a suggestion.


2002 Sportage 4dr 4x4 soon to undergo an Extreme Makeover!