My mother's 3.8 Impala will not accept fuel unless it is trickled in slowly.
First thought was maybe something in the filler neck, but that doesn't seem
likely. It's been cold out, so I haven't taken the neck off yet. Anyone have
any ideas on what to look for? It takes 10 minutes to fill it with a 5
gallon gas can. I have a day off on saturday so I'm going to take it apart
then. So, any advice would be appreciated.