Hi All Got this mondeo.Very flat above 3500 revs like exhaust blocked. Cat seems ok and emmisions first class. The lever for the manifold flap was off. After fitting back on went better for a few miles only. Does anyone know if there is a known fault with the flaps and if so would this require a new manifold. Slight rattle from the manifold. Seem to remember something about this problem but me old mind is not what it used to be Les