Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

Whistling sound around TB as engine shut off

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Old Aug 18, 2021 | 04:56 AM
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civic9622's Avatar
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Default Whistling sound around TB as engine shut off

Hey guys
recently i have a problem with this whistling sound after i switch off my car and it goes like a whistling spiral sound .
I was suspecting it was the aftermarket Air inlet/Box because this sound occurs only after changing an Aftermarket Air Inlet/Box
So, i removed the air inlet so left only the Throttle Body itself and i do the same thing start and turn off the car and the whistling sound is still there

Btw my idling is perfect and it doesnt fluctuate everything seems to be fine and car is running good.
i am just wondering is there a fix to it

i attached a video so u guys can understand

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IMG_3979.MOV (2.29 MB, 15 views)
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Old Aug 18, 2021 | 10:04 AM
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Default Re: Whistling sound around TB as engine shut off

Sounds like a vacuum leak. check your hoses and PVC.
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Old Aug 18, 2021 | 09:42 PM
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Default Re: Whistling sound around TB as engine shut off

Put the stock airbox back on and see if the sound still occurs when you shut the car off.
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Old Aug 20, 2021 | 11:40 PM
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Default Re: Whistling sound around TB as engine shut off

Originally Posted by Stock95delsol
Sounds like a vacuum leak. check your hoses and PVC.
i have already check my pvc is new and vaccuum hoses theres no leaking
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