I have a problem with my expert van 2.0 HDi, for the last month it seems to be very sluggish, poor accelaration. its bearable around town but on the motorway its realy hard to keep at any decent speed. in third gear it accelarates slowly then as soon as I hit 50mph it gets a spurt of power, I have to take it to about 60mph then change to 4th again it slowly creeps to 70mph then it bursts into life and will go to about 85mph plus . if i change to 5th it will keep at a steady speed, but if the revs go down (due to hills etc) it will not regain speed. I think it has something to do with the turbo charger. I would appreciate any of your oppinions before I book it in to be repaired..
Thanks in advance
Mo
Ps. the van is always full of tools etc. but I its always been fine in the past..