hello
about two weeks ago my trusty volvo 940 turbo started to sound strange. the sound, a rhythmic whirring noise, occurs only when accelerating. I can?t produce it when I just rev the engine while standing still. I think that instead of the (normally very soft) whining of the turbo, I now get a sound which sounds from the outside surprisingly like an old vw beetle or vw bus engine. the only abnormal thing is the sound. the car accelerates and generally behaves like before. I don?t think I?m missing any power or acceleration. nor does it consume more gas (thank heavens for that!). a visual check of the engine compartment yields no sooty stains anywhere near the exhaust pipes or so. has anybody out there a clue or even experienced the same? I?m somewhat at loss here.
thanks a lot!
mathias