The Dreaded EGR!

[LambethBoy]

Well the EGR valve finally gave up at 85,000 miles. Still ran but constant P0401 and P046C codes & engine management light plus I was starting to lose coolant so there must be a crack inside. Just really surprised how much soot is inside these and I use premium diesel 95% of the time!

 

[Sasquatch]

That's not bad going mileage wise. Premium diseasel might help to keep clean surfaces that come into contact with the liquid fuel but will do nothing as regards carbon, a simple by product of combustion mixed in with unburned fuel.

 

[DXX]

That’s a clean one, other than the coolant leak you got your moneys worth. At least on that type of EGR you can buy a new gasket.

 

[mbh]

Mine only lasted 20,000 miles!. Ex main dealer demo vehicle.