1:st-Oct-2018, 09:08:14
Vauxhall recon either someone had been at the turbo or more likely a large piece of carbon impacted vanes. Not sure where the crack in the manifold is, but suppose it may have overheated due to the frequent regens?
I would say though that the issues with mine are probably worst case and not the usual cause of under boost issues.
I would say though that the issues with mine are probably worst case and not the usual cause of under boost issues.