I have 2004 dodge 2500 with 5.9 cummings it has
Loyd
I have 2004 Dodge 3500 w/ 5.9 Cummins , at about 80,000 miles I had excessive oil fumes coming from underneath the hood of the truck . Fumes came from the slobber tube . Took it to the dealership . At first they replaced the fuel rail . Problem got worse . Took it to the dealership again , Oil pan dropped , engine head removed , fuel tank checked , at my cost at first . Results , number one piston top pitted like some took a pick axe to it , parts of piston rings missing , number six piston top clean , but parts of the rings missing as well . This took 17 days for the dealership to find out and to agree to have the engine repaired under warrenty . 14 more days to order and install new engine and turbo . 31 days in total to repair an engine that is defective . Two other engine were in the shop at the same time with the same problem . I now have 100,000 miles on the truck and only 20,000 miles on the new engine with the signs of the oily fumes showing up again . So , rings crack , pieces make their way out of the engine block thru the turbo , back pressure in the crank force the oily fumes out of the slobber tube . That has been one of the problems I have experienced with my Dodge Ram . I am not impressed with my 2004 Dodge , however , my 1995 Dodge Ram was great . Is the new Cummins Engines a true diesel with a replacable cylinder sleeve ?
I hope that this is not your problem , but the fastest way is to check compression in each cylinder and crank case pressure .
James , Shade Tree Mechanic