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Turbo whistle / Police siren .. Lc4 Auto 2005 model.


 
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Maxmax
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Joined: 15 Aug 2019
Posts: 7
Location: surrey

PostPosted: Tue Jun 16, 2020 18:50    Post subject: Turbo whistle / Police siren .. Lc4 Auto 2005 model. Reply with quote

Lc4 Auto 2005 Mileage @ 115 k the Cars making Loud Siren type sounds once the revs go up from 1300 rpm.

They go louder the higher the revs go and sound on idle is ok.

Checked for leaks/loose pipes,but a little oil stains under turbo unit?

Anyone shed some more light or has had this problem sorted.

Thanks
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TONYCY11
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Joined: 05 Jun 2012
Posts: 409
Location: CYPRUS

PostPosted: Wed Jun 17, 2020 18:13    Post subject: Reply with quote

It could be a turbo problem , the turbo side thats  pumping air into the engine can wear at the shaft causing movement between the sides and cause the blades to touch the sides and break  bits off or bend at their edges
 causing the blades to make that kind of sound .
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Maxmax
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Joined: 15 Aug 2019
Posts: 7
Location: surrey

PostPosted: Wed Jun 17, 2020 18:45    Post subject: Reply with quote

Hi
Thanks for your reply..Where would the broken bits of metal go?
Would they not damage the engine?
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TONYCY11
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Joined: 05 Jun 2012
Posts: 409
Location: CYPRUS

PostPosted: Wed Jun 17, 2020 19:38    Post subject: Reply with quote

If bits and it would be gradual so like iron fillings actually made it past and through the intercooler  they would probably just stick into the thick black sticky gunge stuck around EGR valve and elbow and inlet manifold ,
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