hi my 2000 clio 172 sport has started making a really bad rattle from the top end of the engine. Its fine when cold but as soon as the car starts to warm up the rattle starts - when hot and at idle its really bad, tried changing oil and filter but just the same, as soon as you touch throttle the knocking goes, but hold the engine at any revs and its nice and quiet. Go back to idle and it knocks and rattles again. Any ideas on how to fix?
cheers
cheers