i have got a ford ka 1.3i i have recently noticed that it keeps juddering really bad when im driving its like im losing power then all of a sudden i get it back again and it kicks ya back in he seat what could be causing this please help


i changed the ht leads and the plugs only been changed not too long ago as it has just had a full service it judders most of the time so im starting to think it is summit serious how much would a coil pack cost because thats the only thing that i have not done