Join Date: Nov 2010
Location: United Kingdom
decoking inlet manifold - how or why??
I have started a preventative maintence regime on my 2.4 jtdm 159. Following advice in the forum it was a doddle to take off EGR and give it a good clean. The amount of oily sludge in the unit was unbelievable. I made sure of 2 things 1) ease of spindle movement and 2) making sure there is a good seal when shut by lapping the valves into the seats in the housing.
Turned to MAF sensor on the manifold. 2 min job to get it off and 10 min job with carb cleaner to carefully get all the carbon out of the protective housing which was closing the sensor off somewhat.
Had bought a egr blank but never fitted when found comment that a limp mode would result so binned that.
So given all the oily sludge that's got into the manifold (and will continue to do so until I get remap, dpf and egr defeated) is there any way (other than taking the manifold off) to "help shift " the stuff that's in there?
Any ideas welcome! Or will it have minimal detrimental impact just sitting in the manifold and inlet tracts?
PS, I run with Millars supplement regularly now to hopefully reduce future build up.