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Discussion Starter · #1 ·
Hi everyone - need to pick your brains. Got my ST2 '06 32K miles about 3 weeks ago. I've noticed a whiney noise that starts from about 1500 revs and continues up to 3500 revs - above that the noise *might* still be there but the engine seems to drown it out
I thought it might be the turbo but that does seem to make a separate noise and have had turbo cars before so I know what that sounds like. If I take the ST up to say 3000 revs and then take my foot off the accelerator the noise is still there as the revs reduce down through 3000 to 1500 or so.
I know the first owner had problems with the thrust bearings and gearbox before they got rid of the car.

1. Do not think its the alternator problem as have had no problems whatsover with electrics.
2. Do not think its the oil separator diaphragm problem as the problem is not there at idle or when the engine is turned off for a bit.
 

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Discussion Starter · #3 ·
Wife/GF? Shouldn't think so - she earns more than me at the moment!

I don't think this is related but thought I'd add it as it just might be: when I turn the engine off I hear a quiet whine that sounds a bit like a vacuum cleaner(!) winding down for about 4 seconds. This is not the same noise as its lower in pitch.
 

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Trevor B
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QUOTE(gammo @ 14 Dec 2009, 10:11 AM) <{POST_SNAPBACK}>Wife/GF? Shouldn't think so - she earns more than me at the moment!

I don't think this is related but thought I'd add it as it just might be: when I turn the engine off I hear a quiet whine that sounds a bit like a vacuum cleaner(!) winding down for about 4 seconds. This is not the same noise as its lower in pitch.The noise/whine you hear when the engine is switched off is the power steering electric pump closing down
 
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