It's the hose that goes from the PCV to manifold,
By the looks of it.
A bit hard to see there,
but can sort of see it's sucked flat in the pic.

Actually it has a bit of a power steering leak so the alternator is likely oily, Will have to check if it and the battery are genuine. Is their anything on the alternator that would let me know? I thought the voltage looked ok, But it does move around a little. What sort of battery should it have? W...

Thanks for that. It has just has new genuine plugs, fuel filter and PCV fitted a bit over a month ago. It seems like their is more vacuum than what their should be, which makes me think the PCV still isn't right. It is pretty smooth really, even with the top engine mount off for access to plugs and ...

Hi everyone, I recently purchased a 2009 XC90 V8. It has random misfire codes, And auto shudder. The engine itself seems fairly smooth and only shakes about 5mm or so at idle. The annoying things are the misfire codes and shudder. (especially on TC lock up), It was apparently also recently flushed w...