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Symptom Tree t122
Cause | Correction |
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Engine is operating for extended periods under light or no-load conditions (slobbering) |
Review the engine operating instructions. Refer to the OEM service manual. |
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Turbocharger is not correct |
Check the turbochargers’ part numbers and compare them to the Control Parts List (CPL), Bulletin 3379133 or 4021327. Replace the turbochargers, if necessary. Refer to Procedure 010-033 in Section 10. |
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Lubricating oil or fuel is entering the turbocharger |
Remove the intake and exhaust piping, and check for oil or fuel. |
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Turbocharger oil drain line is restricted |
Remove the turbocharger oil drain line and check for restriction. Clean or replace the oil drain line. Refer to Procedure 010-033 in Section 10. |
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Crankcase pressure is excessive |
Check for excessive blowby. Refer to the Crankcase Gases (Blowby) Excessive troubleshooting symptom tree in Section TS. |
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Turbocharger oil seal is leaking |
Check the turbocharger compressor and turbine seals. Refer to Procedure 010-040 and Procedure 010-049 in Section 10. |
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