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Old 5th March 2009, 14:45   #16
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In the meantime it would be great if you guys can post some more suggestions.
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Old 29th March 2009, 01:30   #17
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I had the same problem with my petrol lancer , Whistle sound used to come from the speakers i.e whistle sound used to increase with acceleration . Fault was loose earth connection of my ICE .
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Old 26th November 2009, 01:34   #18
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Hey guys,

From past few days my alto whistles at higher RPM's (redlining RPM's). Once engine passes around 4.5K - 5K RPM's the exhaust starts to whistle..Is that normal or is there any problem...I recently installed a k&N conical filter, but the whistling sound used to come before I installed the k&n..

Please suggest.....
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Old 26th November 2009, 05:39   #19
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Earlier i've seen a friend lancer who installed some nozzle at end of silencer which gave whistling sound at high speed.

Do you have any such attachment on silencer end ?
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Old 26th November 2009, 06:22   #20
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The whistling sounds are mostly from the intake, some people even do it on purpose to get that. But as you say it was there before the k&n, it is mostly due to a leak in the exhaust. High rpm = high pressure so if there's a leak somewhere, it might sound at high pressures.

Just get an auto guy to check your exhaust starting from the manifold upto the muffler tip while mildly revving the engine. Shouldn't be hard to solve it. If you can hear the whistling while revving, just look for its source.
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Old 27th November 2009, 22:02   #21
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Quote:
Originally Posted by ghpk View Post
Earlier i've seen a friend lancer who installed some nozzle at end of silencer which gave whistling sound at high speed.

Do you have any such attachment on silencer end ?


Naa..I do not have anything at the end of my silencer... The soound usually comes in at high RPM's
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