Well Pete as you know it requires a bit of steering lock and power to demonstrate this problem so with the snow and ice on Wednesday meant I could only just about show it, they had a visual inspect but saw nothing obvious but agreed from my description that the outer CV joint maybe the issue. It is going in for a replacement water pump next week (leaking gasket, Toyoata covering and not the extended warranty, that makes 2 out of 3 claims that toyota are covering under their own warranty extension, the other was leaking rear lamp - why did I bother with e extended warranty, well they did a sump gasket under it) and they will try to drive it cold to see if they can get it to knock. if they can then they need to get those idiots over at the warranty group to agree to shell out, they always want to send people out, get photos etc, which is the problem with the official extended warranty - The Warranty Group, these middlemen make their oney by rejecting claims or dragging them out for so long you just want to give up.