There was a problem with the cold starting on some of them which was sorted with a fuel filter upgrade something to do with the fuel freezing so they changed the mesh inside the filter.

Also ive changed a few 5th gears on them too just try taking it for a longish drive and get it upto temp then just put it in 5th and drive see if it jumps out if it does its lack of oil getting to the 5th gear which causes this, now ford have brought out a upgraded gear out to solve this problem.

Apart from this and worn lock stops they very rarely go wrong hope this helps.
Cheers Steve