Doesn't seem to have affected power but had the car for 5 years and I haven't noticed this before. When you say turbo whistle, I'm assuming you mean the normal whine of the turbo spooling up etc. Sometimes I can hear mine pretty good, and other times the engine is super quiet. I have exhausted myself with searches on 3si, and with several mechanics. Apr 16, 2012 #1 Came home from work tonight & noticed the turbo whistling louder than normal, goes ok . This one has me stumped. It could be a catchy tune . I kinda like the sound, and wish mine would do it a little more. The wicked wheel does make it whistle louder (loud enough for me). A few days ago I noticed that my Laguna 2.2 dCi has developed a whistling noise when accelerating in the Turbo range (1800-3000 RPM or so). I did the same.Removed the Baffles from the tubing and the silencer ring.It does sound louder than normal but it doesn't start untill it accelerates passed 2000 RPMS.Nothing can be TOO LOUD I noticed an F-350 and I could hear the turbo when he is barely going about 20 MPH.I want mine to be like that What is the best air intake to get, I am looking for better fuel economy, and more noise. I have a 2000 f-250 Powerstroke :smoke and want to make it a little louder, more turbo noise, exhaust noise. which I expect them to say, took it to my local garage and they said is sounded normal, most diesel turbo's make a whistling/whirring noise but as mjr901 said, you only really need to … What would cause loud turbo whistle? Sounds just like slightly-louder-than-normal turbo spool up noise. They fail because not enough engine oil is getting to the bearing to cool and lubricate it, and the reason for that is usually that the turbo bearing oil feed and oil return pipes are blocked with carbon from switching the engine off when the turbo … Car is a 53 plate with 112k on the clock. (vs. a leak somewhere). Sep 8, 2010 1,896 5 38 Isle of Arran. A "turbo whistle" usually indicates a worn and failing turbo bearing, which is pretty much all there is to go wrong with a turbo. I have had a whistle on my turbo since I owned it (about a year now) and it has never caused any issues. When a turbo wraps up at high rpm -- burning reconstituted exhaust -- the high pressure and high velocity of carbon monoxide through the turbo makes a whistle or screaming sound similar to that heard from a jet engine. I "think" that's normal, what with the more aggressive boost profile you're running, and the (presumably) more open intake tract. Thread starter joinerman; Start date Apr 16, 2012 ... Great Missenden Bucks Garage. Boost is still 19/20 psi. As others have said, it may not mean any kind of problem. Many report higher than normal levels of whistle when combining the ATS (or similar) ported intake housing and the WW. Apr 16, 2012 #2 whistle along with it. I've checked for splits in the intercooler hoses. Making your Powerstroke Turbo louder is a matter of increasing the turbo whistle. When Audi serviced it, they said it needed replacing (Quote for £1500!) Ecoman Well-Known Member. Any idea what could be the cause? I've been used to the whistle from the turbo after de-catting, but it now seems to be much louder than normal. Turbo whistle. EDIT: By the way, make certain that your bypass valve returns are locked down into your charge pipe.