Symptom Tree t106
| Cause | Correction |
|---|
|
Bulk oil supply is contaminated |
Check the bulk oil supply. Drain the oil and replace with noncontaminated oil. Replace the oil filters. Refer to Procedures 007-013 and 007-025. |
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|
Coolant temperature is below specification |
Refer to the Coolant Temperature is Below Normal symptom tree. |
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|
Crankcase ventilation system is plugged |
Check and clean the crankcase breather and vent tube. Refer to Procedure 003-021. |
|
|
Lubricating oil does not meet specifications for operating conditions |
Change the oil and filters. Refer to Procedures 007-013 , 007-025 and the Cummins Engine Oil Recommendations, Bulletin 3810340. |
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|
Lubricating oil drain interval is excessive |
Verify the correct lubricating oil drain interval. Refer to the Operation and Maintenance Manual, B5.9G, B5.9LPG, B Gas Plus, and B LPG Plus Engines, Bulletin 3666112. |
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|
Lubricating oil is contaminated with coolant or fuel |
Refer to the Lubricating Oil Contaminated symptom tree. |
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|
Coolant temperature is above specification |
Refer to the Coolant Temperature is Above Normal – Sudden Overheat and the Coolant Temperature is Above Normal – Gradual Overheat symptom tree. |
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|
Crankcase pressure is excessive |
Check for excessive blowby. Refer to the Crankcase Gases (Blowby) Excessive symptom tree. |
