('98-'00) Steps to replace the Fuel Filler Neck? - Subaru May 24, 2010Had a friend (subaru tech) replace it on my '99(girlfriends now), I got to watch, and no you don't need to drop the tank. What looks like the first problem according to him is the bolts/ screws holding it at the filler neck, spray your fave penetrating lube around there for a couple of days. Subaru Forester Fuel Tank Filler Neck - AutoZone Order Subaru Forester Fuel Tank Filler Neck online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store.