[monty]

Hi, I have a 20052.9CDI Auto Sedona, it has 31k on the clockand have a problem that occurs when the engine is at normal temperature, when cruising at between 45 and 60 the engine makes a knocking sound and the car starts to judder, if i put my foot on the accelerator slightly it disapears, I use either shell or BP diesel and have tried putting an fuel/injector cleaner in the tank when I fill up.



Any help or advise would be much appreciated

 

[kilravock]

Does it run rough or jerk at all or is it just knocking monty?

 

[monty]

It only jerksb & knock/tapwhen warmed up, when in top gear 4th and revs around 1750 -2000. Also it does not seem to like supermarket diesel.