My 04 plate mondeo tdci ghia has seamed to lose power, we had a service done yesterday oil,air filter etc but its still kicking out black smoke quite a bit at times and when your driving along its as if the your pumping the accelerator peddle slightly as the car seems to rock

any ideas guys ??

i got it sorted a quick internet look and i found out it was a split in the pipe that goes from the egr to the intercooler

ford only part £43 including vat