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 instructions. |
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Turbocharger is not correct |
Check the turbocharger part number and compare it to the Control Parts List (CPL), Bulletin 3379133 or 4021327. Replace the turbocharger if necessary. Refer to Procedure 010-033. |
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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 drain line is restricted |
Remove the turbocharger drain line and check for restriction. Clean or replace the drain line. Refer to Procedure 010-033. |
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Crankcase pressure is excessive |
Check for excessive blowby. Refer to the Crankcase Gases (Blowby) Excessive symptom tree. |
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|
Turbocharger oil seal is leaking |
Check the turbocharger compressor and turbine seals. Refer to Procedures 010-040 and 010-049. |
