update: the last few weeks of driving i have been dealing with this problem and it dawned on me last night that when driving/cruising and i start to slow down the car only starts to jump about as it hits 2500/2000 rpm. It will drop from 4000 3000 no probs as soon as it hit the 2500/2000 mark its starts to jump about. Just to confirm it accelerates through the revs lovely no jumping about regardless of revs on when its running down do i get the jumping at 2500/2000 rpm. Anymore help or hoping this confirms the above mentioned would be great thanks again Graeme