lacks power

[keithk]

hiu ive a dw10rated and its started to lack power and seems noisy ,,ive only had the car 6weeks ,,it was fine or should i say seemed fine wen bought

[FlySpeck]

clogged injector or low fuel pressure? fuel filter or pump may be needed but the HDi motors all suffer injector pre-inject faults (clogging) eventually and rattle lightly between 2k and 3.2k rpm.....if it goes silent at exactly 3200 rpm then its the injectors bud (or one at any rate)

You can buy one good one (second hand as new ones cost a kidney) and swap it one by one until the noise goes away. Sounds like pinking on a petrol would sound.