Bongo Fury

The engine has been gradually losing power over the past few weeks, so I changed the fuel filter but this made no difference. Eventually it did not have enough grunt to haul it's bulk up any kind of incline. The garage checked the back box for me but there is no blockage in the exhaust system and no apparent problem with fuel delivery.

My local garage (not Bongo specialists) think that it could be the turbo (''). Is there any way we can check this and is there anything else it could possibly be before I go to the expense of replacing the turbo charger?

Have you tried the little mesh strainer on the fuel pump? When you remove the banjo connection from the fuel filter, it's at the bottom of the hole - I used a cotton bud to get mine out.
Also, is your air filter blocked - are you getting a lot of smoke from the exhaust?

Yes Francophile, I should have said 'filters'! Fuel delivery is (unfortunately) not the problem.

What about the little pipe that runs from the front
of the inlet manifold to the pump is that on and OK?
it tells the pump the turbo is doing its thing and turns
up the fueling.
It's under pressure when the turbo is working so can blow off.

try the thread bit sluggish up big inclines, you will see a photo on there to check the pipe, it happend to mine was very sluggish also another member, connected pipe , now like a sports car uphills. good luck

Many thanks for the responses, Ill check out those things before going the turbo route. Does anyone know how to test a turbo while it is still on the vehicle?

I'm not sure of any 'direct' method to check the turbo, however, the turbo assistance to the engine is negated if you disconnect the big black plastic hose which is joined to curved metal pipe which in turn is joined to the inlet manifold. So, if you drive the van with this pipe connected and then disconnected and there is a difference, this would suggest the turbo is working........if there is no difference then it may be duff.

A bit of an amateurish hit and miss method I know but may give you something to go on.

Btw, the pipe I'm referring to is located by lifting the drivers side seat, and looking sort of top right and back a bit by the cam belt cover.