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Very loud whistiling noise in engine bay once car has been turned off!!

4bella

By 4bella,
in Engines & Forced Induction

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4bella Collaborator

4bella

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Just wondering if anyone knows or has any ideas about this loud whistling noise that goes on for 2 secs straight after my car has turned off.... i try hearing where it comes from and its definately near the turbo/manifold/compressor area....was thinking it might be the bearings....but my t28 turbo runs perfectly and boosts up properly and even on high boost....

Cubes Grand Master

Cubes

Posted
Posted

I had a really loud whistling noise once the car warmed up once.

Popped the bonnet couldn't see anything.

It was a pin hole in the top radiator hose.

What I found interesting is at first there was no signs of steam.

Just a damn loud whistling noise.

The Mafia Grand Master

The Mafia

Posted
Posted
Just wondering if anyone knows or has any ideas about this loud whistling noise that goes on for 2 secs straight after my car has turned off.... i try hearing where it comes from and its definately near the turbo/manifold/compressor area....was thinking it might be the bearings....but my t28 turbo runs perfectly and boosts up properly and even on high boost....

mine does this too.. Sounds liek the car is sucking back or something..

Not sure but I'll monitor this thread and let you know if I find the problem.

Its just as you shut the motor off right? ass soon as it stops you get a suck back kind of noise?

4bella Collaborator

4bella

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It sounds just like a kookaburra. no joke, i know it sounds weird and funny but it sounds just like it and goes for like 2-3 seconds...even whe im just idling at the lights waiting...it sometimes goes off again....its definately near the turbo area....

Duncan Grand Master

Duncan

Posted
Posted
It sounds just like a kookaburra. no joke, i know it sounds weird and funny....

Are you sure you didn't suck a kookaburra into your engine while you had the air filter off? That would cause a kookaburra noise.

I think it happens a lot with the bonnet scoop on the WRX sti as well, birds and small children often get sucked into the engine

BBQ Community Regular

BBQ

Posted
Posted

Check your belts, eg, alternator, power steering, A/C if all are ok maybe your timing belt pulley is seising up, it tends to try and jump off the pulleys on down revs,

How many km on the clock? if 100,000km it will be due for timing belt change.

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