Engine Surges at Idle
| Cause | Correction |
|---|---|
| Low Fuel Level in Tank | Fill fuel supply tank. |
| OK | |
| Idle Speed Too Low | Check / adjust low idle screw setting. |
| 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 | |
| One or more Injectors Malfunctioning | Check / replace injectors. |
| OK | |
| Worn or Malfunctioning Injection Pump | Remove pump. Have pump recalibrated or replace injection pump. |
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