Symptom Tree t107
| Cause | Correction |
|---|
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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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Lubricating oil level is above or below specification |
Check the oil level. Add or drain oil, if necessary. Refer to Procedure 007-025. Check the dipstick calibration. Refer to Procedure 007-009. |
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|
Lubricating oil cooler is malfunctioning |
Check the oil cooler. Refer to Procedure 007-003. |
|
|
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 temperature sensor or circuit is malfunctioning (electronic controlled fuel system) |
Check the lubricating oil temperature sensor and circuit. Refer to the OEM service manual. |
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|
OEM components cooled with engine lubricating oil are malfunctioning |
Check OEM components. Refer to the OEM service manuals. |
