Hi. whilst driving on the motorway and get above 50mph the car seems to judder intermitadly when i try to hold it at a steady speed, and also when i try to accelerate above 55 going up hill starts to judder intermitantly . I have replaced oil and filter and fuel filter about 2000 miles ago. If anyone could offer a suggestion to what may be causing this i would be very greatfull.
cheers
steve