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. |