Well my first issue started with a P0170 fault (Lean/Rich Bank 1).
So I cleaned the throttle body, EGR, etc...
Fired her up and she laboured (Missed) so I revved it and it made a horrible noise.
Followed by a metallic tinkle into and down what sounded like the exhaust.
So we stripped the head and couldn't find any problems.
All valves, cams, belts etc....
So we decided to separate the engine/gear box and that is where we saw the damage.
There are six bolts which connect the flywheel to the end of the crank (onto which is bolted the torque converter).
One of the six bolts had sheared and we found it it the Auto bell housing.
It was sheared clean off, no threads showing, perfectly flush with the flywheel.
So this was the tinkling noise we heard and the screeching must have been the flywheel oscillating
Tried to find an engine/gearbox to no avail so I bought a 52 plate CD Saloon with 69,000 miles on the clock and service book.
Thought I may as well do a straight swap because my engine/gearbox have done 144,124 miles.
So I have a spare car to break and sell unless someone wants to buy a very good rolling chassis.