hello every body , i'm new in this forum , i'm owner of ford focus 1.8 tdci (2009) duratorq , i'm experiencing some troublshootings , like engine knocks onacceleration around 2000 rpm with some fume and loss of performance so ,l'm thinking about cleanind the EGR valve ...so if somme one can help me to extract this valave , i'll be very gratful ...many thanks