Global Mod Team
Join Date: Nov 2002
Location: Congleton - The centre of
I'm about as far from an expert as it's possible to be, but I'd say that anything sounding like 'shhhhh', has got to be an air intake noise?
1st guess would be that someone has fitted either an induction kit, or a filter panel replacement to it.
I'd also think that if it's making this noise and definitely hasn't had a performance filter fitted, then there's a chance that maybe an intake pipe has a hole, or has come lose. If this has happened on the engine side of the filter then there's a risk of crap making it's way into your engine.
I'd wait until someone with a clue has answered before taking any action on my post though.
"Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so." - Douglas Adams
"You know, sometimes the world seems like a pretty mean place."
"That's why animals are so soft and huggy."
- Calvin and Hobbes
To err is human, to moderate ursine.