Just thought I would share a little "unfortunate" experience.
Yesterday evening whilst trying to get the N/S HID bulb out I noticed a split in the angled breather pipe from the throttle body flexi hose. (2.5 V6)
Perhaps when I put the hose back after wrapping the relevant section in self-amalgamating tape the angle wasn't quite right and so has caused a torsion tear at the breather pipe junction! Literally a turn of 1 degree would probably has saved this - but as so often is the case it is easy to be wise after the event.
On the other hand - it might just be coincidence..........