My '98 had this. Ford did a warranty fix that replaced that bottom flapper. It still stuck a couple of times but has been OK for years now. I still carry a 2-foot long section of 3/4" fuel-resistant hose to jam down there, but haven't used it.

'98 SE V-6 5-spd ASB Silver stock 89K miles in May '05 Like it for Oregon coast canyons!