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It may well have been there before, but I've just picked up on a whistling sound on acceleration from my Saab 9000CSE. Is the turbo about to give me grief?
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More likely to be an air leak, they can make some weird noises. If it's nothing obvious like split hose, a bit of soapy water sprayed onto the relevant bits will usually find it.
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If it is from the turbo, it's not necessarily a problem. I experienced one hell of a din from the unit on a Cavalier turbo when everything was tightened up after a clutch change.
The problem was the flex joint on the front exhaust pipe. it had been left with the pipe touching a cross member & transmitting the whistle through the body.
After repositioning, it was back to the quiet life.
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Agree with the airleak suggestion. Check the boost gauge at idle, is it in its' normal position? Also has the idle deteriorated? If so it is likely to be a gasket. If not then a split in a hose is favourite opening up under boost.
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Could be the turbo, but as someone else said, not necessarily a problem. Having had a few, some of them whistle & some don't - does it depend on how happy they are in your company :-) ? Just make sure you keep the oil & filter changed. If no other symptoms, don't worry too much but try the air leak theory.
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Whistlin' Saab?
Isn't that a song from the 1930's ?
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Been away for a couple of days. Thanks for all the advice.
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