Hello all i recently got an st200 mondeo and its recently started playing around, acceleration is fine and motorway driving is also fine but if your driving around town and holding a steady anything under 50 it seems to judder and keeps trying to hold back. Its got 8mm magnecore leads which are around 15k old and irodium plugs which are also around 15k old so i would of thought they would have both been ok. Every now and then the idle will change (not drastic) sometimes it will idle at around 1000 and others around 650 so im wondering if there linked. Im going to have the throtle body off and the idle valve off to give them a good clean up to see if theres any difference but has anyone else got any other sugestions? Thank you

try cleaning the egr mate it does help