1.8 duratec judder
hi wonder if any one has any ideas why sometimes my car will judder simlar to a miss fire when driving it happens around once or twice a day no light on dash board during or after the judder car carrys on as normal i did the usual new plugs filter oil etc but as yet no joy any help plz guys would be apreciated

it could be a coil pack starting to break down.

Thx ill look into that

It also could be a cam position sensor fault.
That would cause the misfiring.