A4 (B6 Platform) Discussion Discussion forum for the B6 Audi A4 produced from 2002-2005

Whistle noise help... only under load

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Old 10-13-2011, 09:59 PM
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Default Whistle noise help... only under load

My 2005 1.8t is making a whistling noise when accelerating under load. I can't get it to do it when parked/neutral. I'm worried about the turbo but don't really think it is it. I also sounds like it is coming from the left side of the engine. Any thoughts?
Old 10-13-2011, 10:10 PM
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Diverter Valve? PCV? or a small vaccum leak only noticeable under load
Old 10-17-2011, 06:46 AM
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Visual inspection of all the compoenents A4Audi4fun notes as well as anything to the turbo and the SAI (just below the turbo) is probably the only way to locate the problem.
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