Multiple drivability concerns such as rough running, poor power, stalling, poor fuel economy, and/or excessive oil consumption may be caused by worn or deteriorated fuel injector o-rings. The o-rings seal the injectors in the cylinder head. The fuel injector o-rings should be inspected, and all should be replaced if any are found to be deteriorated. Our technicians note that fuel injector wear and tear from fuel quality and oil quality over time may also cause driving concerns.
Average mileage: (–)
Engine affected: 7.3L V8 Diesel Turbo
4 people reported this problem