I need help with a whirring noise

[Pete6565]

Hi guys
I have an issue that I just can’t find a answer to , any suggestions would be greatly appreciated. I have a Nissan Patrol gu3 2003.
So when I started hearing this whirring noise it was happening under load going up a hill with light acceleration at around 2000-3000rpm
I originally thought it was the turbo as I just hit 300000kms so I changed that to stock garret turbo , I took it for a drive after installing turbo and all seemed good , felt brand new again .
A day later ... the whirring is there again .
I have searched for any issues can’t seem to find anything any suggestions??


Been on this site for years and fixed many of issue with all your mechanical advice found it better than visiting a mechanic
Thanks

[GQtdauto]

Not the fan is it .

[Pete6565]

Doesn’t seem to be I’ve checked belts and gaskets can’t find any issues
It comes from drivers side only lightly accelerating Up a slight hill if I put my foot down the sound stops

[AB]

Just checking, it's not only happening when it's cold and goes away when engine warmed up?


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[Pete6565]

Hi AB
It seems to happen anytime
I do have a video where you can hear the noise 4 times I just don’t know how to post it on here

[the evil twin]

Do you have the EGR blocked?

EGR can make weird noises at times (open under light load and closes when you put the foot down).

[Pete6565]

No EGR is not blocked pretty much stock standard still got the same old leaky intercooler. That I will change when I fix this problem

[Pete6565]

I have a blocking plate somewhere I’ll find it and block it off. Thanks

[AB]

No EGR is not blocked pretty much stock standard still got the same old leaky intercooler. That I will change when I fix this problem

I think you may have answered your own question mate.

If your intercooler is leaking the sound could most likely be coming from there with the harmonics from turbo.

Not definite but very plausible.


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[Pete6565]

Yeah mate I thought about that but wasn’t to sure , I’ll change my intercooler and see if that solves my problem
Cheers