engine stutters at 60mph

Hi All
our H reg 90 drives really well however as soon as we hit 60mph the engine stutters for a split second then carrys on driving ok. My question is this ,is it normal as in the fuel pump is having to go up a notch in fuel delivery or should I look into it the engine is a 300tdi? btw it has a new fuel filter on it

I have never noticed anything like this on my 300tdi.

Cheers

Nope, as said, it ain't normal. Mine doesn't do it even now, after submerging for three days and being cack-handedly rebuilt ..

Possible that lift pump is getting a bit weak.