Engine Hard to Start or Will Not Start (Exhaust Smoke Present)

Cause Correction
Incorrect Starting Procedure Refer to "The Starting Procedure Matrix".

OK

 
Engine Cranking Speed too Slow Check Engine cranking RPM. Refer to "Engine Will Not Crank or Cranks Slowly".

OK

 
Starting Aid Needed for Cold Weather  Check/ repair or replace cold starting aid, if necessary. 

OK

 
Air in the Fuel System Bleed fuel system and check for suction leaks.

OK

 
Fuel Supply Restricted Clean or replace pre-filters and screens, check for fuel line restrictions.

OK

 
Fuel Drain Back Verify fuel return line is plumbed to the bottom of the fuel tank.

OK

 
Malfunctioning Fuel Return Overflow Valve Check / replace fuel return overflow valve.

OK

 
Fuel Transfer Pump Malfunctioning Check / replace fuel transfer pump.

OK

 
Intake Air System Restricted Check intake air system.

OK

 
Fuel Contaminated Verify by operating engine from a temporary supply tank.

OK

 
Injection Pump Timing Incorrect Check injection pump timing.

OK

 
Valves incorrectly adjusted Adjust valves.

OK

 
One or more Injectors Worn or Malfunctioning Check / replace injectors.