Low Oil Pressure
Misfiring Cylinder
Starting Difficulty – Engine Rotates
Engine Will Not Rotate
Excessive Oil Consumption
Excessive Crankcase Pressure
Excessive Exhaust Smoke – Black or Gray
Excessive Blue Smoke
Excessive White Smoke
Rough Running or Stalling
Low Power
High Engine Coolant Temperature
Low Coolant Temperature
Poor Fuel Economy
Air Compressor
DDEC VI System
SPN
Engine Manufacturer Diagnostics
DDEC VI Schematics