If the engine runs rough, has low power, and is overfilled with oil on dipstick, this is often caused by a leaking fuel injector(s). Each injector should be inspected for looseness and / or leakage. Loose or leaking injectors will need to be replaced.
Car Problem Reports
Ford E-350 Engine Runs Rough, Low Power, Oil Overfilled on Dipstick - Diesel
Ford E-350 Problem
1 Report
Model Year Affected: 2004
Engine Affected: 6.0L V8 Diesel Turbo
Verified