Happy new year everyone!

I've got a whirling noise coming from
the engine, it occurs when stationary and ticking over and also when cruising at 2000rpm.

I did take it to Vauxhall dealer who said it was caused by mould spores in the fuel line - has anyone else heard of this?? Sorry if it's a little vague but it's hard to describe without hearing it.

Cheers

Gavin