Cummins ISX11.9 CM2250 – Service Manual Aftertreatment Diesel Particulate Filter – Excessive Ash Cleaning

Electronic fault codes active or high counts of inactive fault codes

Refer to Section TF in the Fault Code Troubleshooting Manual, Bulletin
4022225.

Extended operation of engine in low duty cycle, extended idling and/or low ambient temperatures

Perform stationary regeneration with INSITE™ electronic service tool. Refer to Procedure 014-013 in Section 14.

Lubricating oil being used has high ash content

Use an engine lubricating oil that meets CES 20081. Refer to Cummins® Engine Oil and Oil Analysis Recommendations, Bulletin 3810340.

Blending of engine lubricating oil into fuel

Confirm oil blending into fuel. Drain fuel and replace with clean fuel. Discontinue practice of blending oil with fuel. Refer to Cummins® Engine Oil and Oil Analysis Recommendations, Bulletin
3810340.

Fuel supplement/additive used has high ash content.

Discontinue use of the fuel supplement/additive being used. Refer to Fuels for Cummins® Engines, Bulletin 3379001.

Intake air filtration system malfunctioned allowing dust contamination.

Review the air intake filtration system for malfunction. Refer to
Procedure 010-024 in Section 10.

Crankcase pressure is excessive

Measure the engine blowby. If the blowby is above specification, refer to the Crankcase Gases (Blowby) Excessive symptom tree. Replace the blowby sensor, if there were not any sensor fault codes. Refer to
Procedure 019-445 in Section 19.

Excessive internal oil consumption

Refer to the Oil Consumption – Excessive Troubleshooting symptom tree.