My colleague just has the problem that the pump gun jumps off after each litre of fuel? He drives the Transit Custom, 8/2016, 170 HP for his 2 years. He drove with the FFH to the gas station and the master has fueled himself and has also skipped off for a long time. On Friday the filling nozzle was changed, on Saturday my colleague wanted to fill up but the gun still jumps off. Has this problem also had who?