Could just be your waste gate dumping the excess pressure which is perfectly normal but if it is a constant noise it could be something more serious. It really depends on the sound and if it occurs at a particular time or engine load. For instance some engines always 'knock' when they are cold but it disappears when they warm up.
If you are not sure what the noise is I would recommend you get it seen to by a professional turbo mechanic. A blown turbo charger will cost you a serious amount to fix and could even result in the engine blowing due to the loss of induction pressure.
If you haven't got one installed already I would also invest in a quality Turbo Timer to reduce the risk of turbo wear. All they do is calculate the time needed for the engine to run to allow the oil to cool the turbo properly after you switch the engine off. Takes some getting used to leaving the engine effectively running after you switch off and walk away from a locked car but well worth it.
2007-01-29 07:54:50
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answer #1
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answered by Alex MacGregor 3
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What car do you have? If you have a car with Japanese turbo's these do like to make a lot of noise, they tend to dislike operating when cold so do sound like they're in pain. If the sounds eases when the engine warms up it's probably fine. But they still like to whine a bit. My old Noble used to make a horrendous noise when it was cold, because the turbo's hated working when cold, but once the engine warmed up they screamed with a jet-type sound. If it boosts properly and does not smoke, and most importantly has no lag in first gear at 15mph when you boot it then it's fine. The only car with lag in this test is the Mitsu Evo 8 FQ400. no other car has a big enough turbo to suffer at this check.
2007-01-29 10:21:55
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answer #2
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answered by Bealzebub 4
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I am a Mechanic/Engineer, and have had this problem on a company vehicle, now as long as you say it is working fine and there is no smoke or odd noises coming from it, i would check the tightness of the pipe clips on the pipes leading to the turbo, they are leaking air and so either letting air out or sucking dirty air (unfiltered air) in, this is not good for the turbo, so try tightening the clips up, they will probably only turn a quarter of a turn but this should stop it.
2007-01-29 08:21:43
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answer #3
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answered by spud 3
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Turbo cars require special knowledge to operate. Careful operations must be faithfully followed.Motoroil choice can sometimes take up slack when making rash decisions. Bad downspooling will coke the bearings leading to loose tolerances that rack the ear with raspy notes. Total turbo failure is not far behind.Penzoil turbo formula is the best but it is nomore useful if bearing damage is there.
2007-01-29 08:04:48
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answer #4
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answered by racer123 5
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If the exhaust pipe is cut up earlier the the cat, that's conceivable that the exhaust gases are escaping from the exhaust as a replace of powering the speedier. Get the exhaust fastened and notice the way it is going. usually the speedier will positioned on by way of the years ensuing in overall performance issues, that's conceivable that the centre bearings on the speedier have failed and the speedier isn't giving the suited effective stress out. Is the automobile a severe mileage vehicle? sounds love that's with the help of what you have reported concerning the actuator being worn. could be an theory to go searching some scrap yards to work out if there is any low mileage vectra's.
2016-12-17 05:15:45
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answer #5
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answered by ? 3
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may be normal noise.
may be exhorst leak
may by waist gate dumping out
may need oil change (it gets it from engine)
you realy need more info on this q?
2007-01-29 18:13:47
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answer #6
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answered by witheringtonkeith 5
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You have a leak in the exhaust side.turbo OK.
2007-01-29 07:45:54
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answer #7
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answered by Anonymous
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yeah it sounds fine, its good that its noisy
2007-01-29 07:46:34
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answer #8
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answered by Anonymous
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