Several years ago I noticed that I couldn't refuel the vehicle normally. It would only accept fuel if you trickled it in otherwise it just kicked off the filling nozzle. Last week I decided to get it fixed and took it to a very good shop here in town. They have been trouble shooting it for several days now. There are multiple valves in the vapor/vent system with really no way to test them. The mechanic is going to replace the most probable one so as to not run the bill up any higher then necessary.