Oil leaks from the valve cover gaskets, timing cover gasket, distributor o-ring, and rear main seal area are common. The leak at the rear main seal area is generally not the seal itself but the bearing cap to the engine block seal. An oil leak could also be internal to the distributor, if oil is found inside the distributor then the distributor should be replaced.
Engine Oil Leaks on Dodge D250
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The following cooling system components are prone to leaks: Thermostat housing gasket, water pu...
Moderate to severe engine damage may result from using non-DaimlerChrysler approved oil filters...
Will not start car in fear it is empty of whatever oil or fluid battery now dead too
a 1991 D 250 2 wheel drive with a cummins engine to convert the 2 wheel to a 4 wheel drive.