Symptom Tree
Fuel level is low in the tank |
Fill the supply tank. Refer to the OEM service manual. |
Starting motor rotation is not correct |
Check the direction of crankshaft rotation. Replace the starting motor if necessary. |
Fuel shutoff valve is closed |
Check for loose wires. Check for power to the fuel shutoff valve solenoid. |
Battery voltage supply to the electronic control module (ECM) is low, interrupted, or open |
Check the battery connections, the fuses, and the unswitched battery supply circuit. Refer to the OEM service manual. |
Fuel inlet restriction |
Check for fuel inlet restriction. Contact a Cummins Authorized Repair Facility. |
Fuel connections on the low-pressure side of the pump are loose |
Tighten all fuel fittings and connections between the fuel tanks and the fuel pump. |
Fuel drain line restriction |
Check or replace the fuel lines, check valves, or tank vents as needed. Refer to the OEM service manual. |
Fuel suction standpipe in the fuel tank is broken |
Check and repair the standpipe, if necessary. Refer to the OEM service manual. |
Contact a Cummins Authorized Repair Facility |