Just drove from Harwich home to Dumfries today after our holiday in Scandinavia, a couple of times when I pressed the accelerater the revs shot up to 3000 for a split second then back down. It was similar in effect to clutch slipping but I hadn't changed gear for over 20 mins so it wasn't that. I have a fiat ducato on a 2010 plate 2.3d apart from this I have coverd just over 2000 miles with no issues, it will be due a service soon so will ask my mechanic guy when I take it just looking for a heads up.
Gerry
Gerry