No turbo boost - Citroen Berlingo Multispace 2l HDI 2004

[kebab69man]

Hi everyone, newbie here,

No turbo boost - Citroen Berlingo Multispace 2l HDI 2004

This fiasco started with a compression leak on cyclinders 1 & 4 which are all mended by a Deisil mechaninic. However, the turbo pressure is not boosting. The car has been plugged in at my mechannics Cetreon specialist friend who has the dedicated dealership sytem. The ecu reads no faults and live data shows all the sensors and components are operating within perameters.

I've read some of the forum articles and nobody posts what solved their problem.

I'm not sure what to do with this issue. I don't really fancy scrapping the van and having to pay 5k for a newier model.

Any thoughts?

Thank you in advance.

[Hell Razor5543]

Hi, and to the Forum.

People who know these engines/vehicles better than me will have a lot of useful advice. However, one thing I might suggest is to first see if there is a vacuum line to the turbocharger and then, if there is (and if it is safe to do so) get somebody to start the van while you watch the turbocharger. If there IS a vacuum line, and it is getting to the turbocharger, an arm should then move (more than that I cannot tell you, due to lack of experience). You might (before starting the engine, and making sure it cannot be started before you are ready, by removing the key) see if you can find that arm and if it moves freely. If it does (assuming it exists and my advise is not useless) that would suggest the turbocharger is probably in good order, but it is not getting triggered.

I have read (on the forum) about vacuum operated turbochargers that have stopped 'working' because of a leak in the vacuum line somewhere, or that the electrovalve that controls the vacuum to the turbocharger has failed.