Join Date: Feb 2009
Location: Bosnia and Herzegovina
County: Banja Luka
Low performance at low revs - Timing variator control valve?
Recently I have noticed significant loss in performance when driving at low revs (2000-3000) and when accelerating. I checked under hood visually and noticed some oil leaking around the timing variator control valve.
Is it possible that this could lead to the loss of performance I've mentioned? Also, there is a bit of diesel sound at start-up. Does this leaking can make the timing variator (because is controlled by this control valve) doesn't operate correctly and how to clean this valve if it is clogged. I don't think timing variator is finished his job because the timing belt (including timing variator) was changed 40,000 km ago.
And to mention - the model is Alfa Romeo 155, 2.0, Twin Spark Engine.