Squeal when warm

[b1nuzz]

Hi there.
My 2005 E85 has a squeal that only develops once the engine is warm.
On idle, it’s barely noticeable, but as as soon as the clutch is raised, and any amount of transmission is engaged, the squeal gets much louder. When manoeuvring at low speeds it’s very prominent.

It sounds like a belt, but it’s making me question what it is because of how it reacts. But I also don’t know what I’m talking about.

Any thoughts on what to check?
Thanks.

[spazmochad]

Check the bearings in the alternator, pulleys and tensioners. I normally to take a peice of hose and sick it in my ear then use that to try and locate sounds. Obviously don't put it anywhere near the belts or anything else that's moving under the bonnet.

[bigwinn]

Oil filter would be my guess

[BumpyZ4]

When manoeuvring at low speeds it’s very prominent.

Does it only happen when you turn the steering wheel?

[b1nuzz]

When manoeuvring at low speeds it’s very prominent.

Does it only happen when you turn the steering wheel?

All the time. Not steering related.

[BumpyZ4]

When manoeuvring at low speeds it’s very prominent.

Does it only happen when you turn the steering wheel?

All the time. Not steering related.

Then I would agree with bigwinn it's most likely a collapsed oil filter.

[b1nuzz]

Finally got around to replacing the oil filter and sadly that hasn’t made a difference.

Still only when warm and goes away entirely when the clutch is engaged regardless of road speed.

I’m stumped.

[bigwinn]

Can you capture a video of it?