Hi there. Same problem with my fusion 1.4 durashift. Judders when pulling away but usually only when the car has been on the go for half an hour or so. Tried the plugs , coil pack and ht lead route but the problem persists. Don't want to throw much more money at it until i can pinpoint the problem. The changing sensors solution may do the job but i could do with more info if anyone can help. Thanks all.