I have a 2004 2.0 diesel Jaguar x type with 87 thousand miles. it has a problem picking up speed, misfires, has intermittant pinking noise with puffs of black smoke, may be a coincidance but I now notice there is engine oil all over the cooling fans, I did not notice the oil when the problem started, I have removed the egr, inlet manifold, and the hose under the egr & pressure washed untill spotless, I also cleaned the inlet ports to no avail