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post #17 of (permalink) Old 7th January 2012
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Re: laguna II 1.dci - what to do next?

Originally Posted by andyboro View Post
Frustratingly, it turned out to be a split at the joint of a vacuum pipe from the wastegate solenoid that id missed! 250 spent for a pipe!
I posted on this type of fault ages ago.. If you follow the vacuum pipe back towards the engine from the turbo solenoid it goes through another solenoid (3way for engine cut off flap)

If that fails it can stop vacuum getting to the turbo solenoid

only about 25 part too

I;m not a great expert on diesel turbocharger but they don't work quite the same as petrol. vanes move inside them move with vacuum which if they dont work just make the turbo run out of grunt under heavy load at about 70mph
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