Originally Posted by boobok

Ford Fiesta, 1.6, Titanium, 09 reg.
When you overfill a tank, sometimes the breather pipe allows a little fuel out. I get this - it happened on an older diesel of mine. But on this car my tank is empty and the garage fuel pump just clicks when I try to fill up, followed by the ejection of a cupful of diesel onto the forecourt. This is a repeatable problem. So, what's going on?