Emin89 Posted November 22, 2012 Share Posted November 22, 2012 Hey guys Ive not found a topic for this one, anyway let me know if im wrong, now to the actual complaint,I found out the other day a misterious whistle coming from under the hood, which happens at 4000 RPM and higher when I floor it, I suspect the Intake Manifold Gasket or a kind of vacuum leak. Now I wanted to find out some more about this problem, if you guys have made some experience, Ive read also in the net, it might be a cracked exhaust manifold, I would appreciate any help.Best regards Quote Link to comment Share on other sites More sharing options...
simpo Posted November 22, 2012 Share Posted November 22, 2012 Do you have an aftermarket air filter on e.g induction kit if yes then it's prob that Quote Link to comment Share on other sites More sharing options...
KiNK43 Posted November 22, 2012 Share Posted November 22, 2012 Alternator belt can also make some whistles or chirps at certain rpms.very common problem on Honda's. Quote Link to comment Share on other sites More sharing options...
Emin89 Posted November 22, 2012 Author Share Posted November 22, 2012 Thank you for the fast response,yes I actually do have an aftermarket cold air intake, the filter is inside the front bumper, and hasnt been cleaned for about 50000 km I think, I actually thought of that today on the highway as I floored it on the acceleration lane, it sounded like a turbo lol Quote Link to comment Share on other sites More sharing options...
simpo Posted November 23, 2012 Share Posted November 23, 2012 I would def say air intake put your standard one back on and see if it goes Quote Link to comment Share on other sites More sharing options...
mcjacko1987 Posted November 23, 2012 Share Posted November 23, 2012 it will be your induction, i just fitted one that goes behind the bumper and that does it, if you kit accelorator hard at any rev you can hear a slight tish. but at 4k it whistles, you can hold the whistle noise but its like a biting point id say to trigger it. i had a similar induction on my old punto and that did it too, so nothing to worry about mate Quote Link to comment Share on other sites More sharing options...
mcjacko1987 Posted November 23, 2012 Share Posted November 23, 2012 it will be your induction, i just fitted one that goes behind the bumper and that does it, if you kit accelorator hard at any rev you can hear a slight tish. but at 4k it whistles, you can hold the whistle noise but its like a biting point id say to trigger it. i had a similar induction on my old punto and that did it too, so nothing to worry about mate Quote Link to comment Share on other sites More sharing options...
mcjacko1987 Posted November 23, 2012 Share Posted November 23, 2012 sorry double post Quote Link to comment Share on other sites More sharing options...
Emin89 Posted November 24, 2012 Author Share Posted November 24, 2012 Thanks a lot, that gave me the rest, Im installing my factory airbox back. It doesnt make any noticeable difference anyway at 116HP Quote Link to comment Share on other sites More sharing options...
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