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C30 / S40 & V50 '04-'12 / C70 '06-'13 General Forum for the P1-platform C30 / S40 / V50 / C70 models |
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whistle?Views : 820 Replies : 3Users Viewing This Thread : |
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Apr 16th, 2009, 21:41 | #1 |
turkeyspace.com
Last Online: Nov 5th, 2016 16:41
Join Date: Apr 2009
Location: Gloucester
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whistle?
There's a medium pitched whistling noise (lasts for approx 1 second) whilst accelerating. Its intermittent (but fairly frequent) and more so at about 2.5k + revs.
The turbo also seems a fair bit quieter when it spools up, and I've noticed that power seems less of a surge than it used to. Needs to be revved more to make brisk progress. Would a vaccum leak give these sorts of symptoms? This is my 1st turbo diesel engined car so I've lots to learn. At first, I thought this was a 'dumping' noise, but it only happens approx 2 seconds after starting to accelerate rather than when I change gear or lift off Thanks in advance. I have the 2.0D S40 ('05 plate) |
Apr 16th, 2009, 22:38 | #2 |
New Member
Last Online: Jun 25th, 2009 15:25
Join Date: Dec 2008
Location: Donegal
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I have the same problem. started like that yesterday but it got worse with loss of power and lots of smoke.
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Apr 17th, 2009, 17:36 | #3 |
Trader
Last Online: May 19th, 2011 21:09
Join Date: Dec 2008
Location: Stoke On Trent
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I get a whistle when accelerating from 2-2.5k revs, but I have no loss in performance so I believe this to be the normal sound from the turbo
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May 3rd, 2009, 00:03 | #4 |
C30 devotee
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My C30 2.0D has been remapped and I get the whistle when pulling hard between 2000 and 2600 revs. Sounds like a lot of air going through a small hole in a hurry. Which is exactly what it is. Not a problem.
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