recently purchased a ford ka.Have put in new spark plugs & leads...Have noticed that after 5mins of driving the car is now and then hesitant/judders for a while.What could be this problem i am occuring any solutions The car has only done 10k miles .Thanks 4 the help

stevie, January 2010

If it was alright before you changed the plugs and leads go back to them and make sure they are pushed all the way home and tight,don't go looking for other faults you will go on forever,retrace your steps and re-check methodically don't point at it and say "that should be alright I've just fixed it".

been there, January 2010