Car is a Ford Focus 1.6TDCI. 83'000miles regularly serviced and oil changed by me regularly at 6k intervals since in my ownership. The car is fitted with the Garrett GT17V Turbo.
A few days while driving home, whilst under full power they turbo started to make a sound not disimmilar to an air-raid siren vacuum cleaner.
I immediately kept the power out of the boost and drove the 2miles home. The car is down on power.
My initial thought was that one of the hoses has split such was the sound. There is no sound off boost/tickover and turbo can be heard spooling up indipendent of the new loud noise.
Rev it harder and the sound sort of sneezes.
On closer examination the sound was coming from within the Turbo and when reved smokey exhaust was seen coming from the back of the turbine housing. The car was a bit smokey not excessively.
In fear of it running away at some point I took it to the locally recommended turbo specialist/engineering guru, who has today had a first look at it and has said that there is little boost and has confimed it is leaking exhaust from the turbine housing.
Turbos are of course a week point on these with the two gauze filters gumming up, but from what ive seen this does not seem to be the usual mode of failure.
As much for sport as for my own interest any idea on what the problem may be?
He is going strip it of more tomorrow... I'm bracing myself for the cost of a new Turbo!