Any bods on here maybe point me in the right direction with a bit of a problem on my Sprinter.

Occasinally (usually going up a certian slip road onto motorway uphill) The engind decides to not rev past about 3,000 revs or about 45-50 MPH. Almost like it`s in a safety mode.

It`s happened on this same road three times now, and at other places.

It goes on like this until I pull up at work and switch off, then seems ok again.

Anybody have any ideas.

cheers

Tony