You’re on the right track, Don, with your guess that the whistling noise has something to do with the turbocharger’s bearing. But unfortunately, if you’re right and it’s the turbo bearing that’s making the whistling noise (and I agree with your theory) then a new or rebuilt turbocharger is the only real fix. Turbos have a hard life, dealing with extremes of temperature as well as the requirement to accelerate from almost nothing to anything up to 250,000rpm. The bearings that allow for this are sealed units and – generally – are not serviceable.

But you might be lucky: A lack of turbo boost can be caused by many things, so check the basics like a loose boost pipe before you start tearing the engine apart.

Ford's Transit Connect compact panel van range powers the front wheels, rather than being rear wheel drive as per larger more robust vans designed to haul very heavy weights.

The short-wheelbase Ford Transit Connect panel van is 4420mm long, while the long-wheelbase variant comes in at 4820mm.