i have a 2006 tdci 135bhp blowing black smoke only done 45,000mls.have changed egrvalve,fuel and air filter.it also makes a blowing or suction noise when under load any ideas
As above,intercooler pipe (upto egr valve usually) splits,get someone to rev it up while you look/feel for the air rushing out. There is usually oil around area,if not that check intercooler itself they split or even swell up & burst