Hello every one.
My 850T5 has just developed a problem and I am at a bit of a loss as to how to fix it.
The symptoms are the car now accelerates like a 2.3L low compression 850 Volvo to an amusing swaney whistle type noise.
The noise rises in pitch in time with the turbo and not the revs or roadspeed. It's not the turbo spooling as I can hear the normal very quite high pitched whine as it does so.
I found a couple of the vacume hoses had come off but their refitting made no difference to the lack of performance.
The standard boost guage shows the boost going to the start of the white section,as it used to (the car is bog standard) but the acceleration that went with it has gone.
I can't find any leaks (it doen't make the noise on idle thus making it tricky for me to fault find).
Of course it wouldn't do this in the month of checking out that the car was OK, but as soon as I order some new performance plugs, leads, and a K&N filter.
Sorry about the essay!
Any help would be gratefully received.
Cheers,
Darryn
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