Raywilldoit

Do you know of any posts showing how to do this, what adjustments did you find needed? My 06 D4D has done 200k.

I think my 06 D4D is down on power as well so thanks for the heads up on possible causes. Has anyone tried using a spray for the intake de choking? Subaru have a spray they sell for there petrol engines. Has anyone every checked their valve clearances as per the manual (every 100,000 Km's)?