A Series Diesel Engine Troubleshooting Logic 47
Excessive Fuel Consumption
Cause
Correction
Additional Loading form
Malfunctioning Accessories
Check/Repair Accessories and Vehicle
Components. Refer to the Equipment
Manufacturer’s Procedures.
OK
Operator Technique
Review Operation for Correct Gear Shifts,
Deceleration, and Idling.
OK
Poor, Quality Fuel
Make Sure Quality No. 2 Fuel is Being
Used.
OK
Inadequate Intake Air or Exhaust
Restriction
Refer to Troubleshooting Logic for
Excessive Exhaust Smoke.
OK
Fuel Pump Timing
Check/Time the Pump.
Refer to Page 77, 96
OK
Worn or Malfunctioning Injectors
Check/Replace Injectors.
Refer to Page 88.
OK
Valves Not Seating
Check/Adjust Valves.
Refer to Page 179
OK
Malfunctioning Power Functions
Check/Repair Power Functions.
Refer to Page 148
OK
(Continued)