Freelander 1 Whistle on acceleration

Mr K · Dec 2, 2023

Hi
My 2004 TD4 manual has developed a whistle/whoosh noise on acceleration and also when I take my foot off the gas, I’ve check all the hoses (apart from the one out of the turbo) but no leaks or splits.
It runs fine, no smoke or ECU light.
Seems to be getting worse, by that I mean it seems to be starting sooner than it used to.
Any ideas?
Thanks.

The Pilgrim · Dec 2, 2023

My guess is the turbo in need of attention.
But the elders will speak.

Nodge68 · Dec 2, 2023

Mr K said:
Hi
My 2004 TD4 manual has developed a whistle/whoosh noise on acceleration and also when I take my foot off the gas, I’ve check all the hoses (apart from the one out of the turbo) but no leaks or splits.
It runs fine, no smoke or ECU light.
Seems to be getting worse, by that I mean it seems to be starting sooner than it used to.
Any ideas?
Thanks.

Have you checked the underside of the top driver's side 90° hose, it rubs through on a badly positioned bolt underneath the hose.

Mr K · Dec 2, 2023

Yea checked that one, in fact I just fitted a new silicone hose which doesn’t rub.

Alibro · Dec 3, 2023

The vac hoses can make odd noises. The one going the the EGR usually wears through but might be worth checking them all.

Mr K · Dec 3, 2023

Thanks but I replaced them all a few months ago.

pwood999 · Dec 4, 2023

If you take off the turbo inlet rubber pipe, it's possible to grab the turbine & wiggle it to see if there's bearing play.

Mr K · Dec 4, 2023

I'll give that a go.

J_D · Dec 5, 2023

If it sounds like air pressure escaping, it probably is. Check all pressure hoses as a small split can open under pressure. Doesn't need a big split, just like when we whistle.

Freelander 1 Whistle on acceleration

Mr K

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The Pilgrim

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Nodge68

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Mr K

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Alibro

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Mr K

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pwood999

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Mr K

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J_D

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