A Series Diesel Engine Troubleshooting Logic 18
Engine Starts But Will Not Keep Running
Cause
Correction
Engine Starting Under Load
Disengage Driven Units.
OK
Idle Speed Too Low For
Accessories
Adjust the Idle Speed.
Refer to Page 73
OK
Intake Air or Exhaust System
Restricted
Visually Check for Exhaust Restriction and
Inspect the Air Intake.
Refer to Page 99, 101
OK
Air in the Fuel System or the Fuel
Supply is Inadequate
Check the Flow Through the Filter and
Bleed the System. Locate and Correct the
Air Source. Refer to Page 83
OK
Fuel Waxing Due to Extremely Cold
Weather
Verify by Inspecting the Fuel Filter.
Clean the System and Use Climatized
Fuel or Fuel Heaters.
OK
Contaminated Fuel
Verify by Operating the Engine With Clean
Fuel from a Temporary Supply Tank. Drain
and Flush the Fuel Supply Tank.
OK
Restricted Fuel Drain Manifold or
Return Line
Check/Correct the Restriction.
Refer to Page 81
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