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Symptom Tree t050
| Cause | Correction |
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Refer to Engine Noise Diagnostic Procedures – General Information within troubleshooting overview procedure at the end of Section TS before using this symptom tree.
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Electronic fault codes active or high counts of inactive fault codes |
Refer to Section TF in the CELECT Plus™ Systems Troubleshooting and Repair Manual, Bulletin 3666130, or Section TF in the CELECT™ Systems Troubleshooting and Repair Manual, Bulletin 3666084. |
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Lubricating oil pressure is below specification |
Check the oil pressure. If the pressure is low, refer to Procedure 007-028 in Section 7. |
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Lubricating oil level is below specification |
Check the oil level. Verify the dipstick calibration and the oil pan capacity. Fill the system to the specified level. Refer to Procedure 007-009 and Procedure 007-037 in Section 7. |
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Lubricating oil is thin or diluted |
Refer to Procedure 007-037 in Section 7. If the oil pressure is low, refer to the Lubricating Oil Pressure Low troubleshooting symptom tree in Section TS. |
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Flywheel or flexplate capscrews are loose or broken |
Check the flywheel or flexplate and the mounting capscrews. Refer to Procedure 016-005 in Section 16. |
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Torque converter is loose |
Check the torque converter. Refer to the OEM service manual. |
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Main bearings are damaged or worn, or the wrong bearings are installed |
Inspect the main bearings for damage, excessive wear, and the correct part number. Refer to Procedure 001-006 in Section 1. |
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Crankshaft journals are damaged or out of round |
Inspect the crankshaft journals. Refer to Procedure 001-016 in Section 1. |
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