Strange noise arround 1500-2000rpm?

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spiritbleuk

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Hi Guys!

i am new here,and bought my first Fiesta ST180 2 months ago , and noticed a strange noise arround 1500-2000 rpm any gear, is it not like a whinning , cant really describe (whohhww-whohhww) found a lot post about almost a same noise , and a video almost a same mine also noticable arround from 1500-2000rpm , soo my question is anybody know like 100% what is it ? and how can we make it dissappered? a bit annoying 🤦🏼😤

Thank you guys 🤙🏻

video :
https://youtube.com/shorts/RxGpj2tAQig?feature=share
View: https://youtu.be/hyxRGpbSykw
 


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spiritbleuk

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car is a St180 2014 montune(montune airbox+filter)
 


D1JL

D1JL

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Dave
 


Clint Beastwood

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are you talking about the fwfwfwfwfwfw sound? If so, thats a lil bit of turbo flutter - the turbo is spinning, you close the throttle and theres not enough pressure for the diverter to open so theres a temporary increase of pressure and resistance back against the compressor turbine
 


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GilliesST

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spiritbleuk said:
Hi Guys!

i am new here,and bought my first Fiesta ST180 2 months ago , and noticed a strange noise arround 1500-2000 rpm any gear, is it not like a whinning , cant really describe (whohhww-whohhww) found a lot post about almost a same noise , and a video almost a same mine also noticable arround from 1500-2000rpm , soo my question is anybody know like 100% what is it ? and how can we make it dissappered? a bit annoying 🤦🏼😤

Thank you guys 🤙🏻

video :
https://youtube.com/shorts/RxGpj2tAQig?feature=share
View: https://youtu.be/hyxRGpbSykw
Click to expand...
Hi,

If you mean the weird whirring as the revs are being let off, I have the same issue. Were you able to fix it? It has been driving me nuts for the past 3 months, had timing belt, aux belt, water pump and a bunch of pulleys replaced and still didn't fix my issue.
 


Clint Beastwood

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GilliesST said:
Hi,

If you mean the weird whirring as the revs are being let off, I have the same issue. Were you able to fix it? It has been driving me nuts for the past 3 months, had timing belt, aux belt, water pump and a bunch of pulleys replaced and still didn't fix my issue.
Click to expand...
No, car still does it. Hasn't ever seemed to affect anything. The fist build quality is something I wasn't super prepared for, so I am probably just too picky to ever be "happy" with that aspect of the car. It's a beater though so I try to stop worrying about it.
 


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