V70R Engine Failure at 3000 Revs

[Robert Brunton]

Originally Posted by buick boy

Had a similar problem on my 2003 v70r , check the fuel pressure (should be a valve on the end of the fuel rail for this purpose) The fuel pressure is controlled by a vacuum operated valve on the fuel rail . check that the vacuum pipe is sound and it is pulling a vacuum when engine is running ,then the regulator for operation , I checked mine with a hand operated vacuum pump. Turned out it was knackered . Replaced it and all was well again .Hope this is of help.

Hi and thanks for your helpful suggestion. Unfortunately most of what you said went a bit over my head. My fault as not much of a mechanic. Would you know if there is anywhere that might show me a step by step guide of what you have described? Alternativly the part number of vacuum pipe you replaced so I can just have a go at replacing the part.

[buick boy]

The vacuum pipe is a thin plastic pipe with a rubber sleeve at each end . It connects under the inlet manifold and to the regulator on the end of the fuel rail . Its only a push fit so is easy to remove and inspect. most motor factors would sell it by the metre. For the sake of a couple of quid its worth replacing , just to eliminate one more thing.