Engine - noisy operation
- Make
- Alfa Romeo
- Model
- 155 Factory Service Manual
- Year
- 1992–1998
- Section
- Procedure for fault rectification › Engine - noisy operation
Engine – mechanical (V6)Engine - noisy operation
ENGINE - NOISY OPERATION
| FAULTS AND SYMPTOMS | FAULT ISOLATION | TEST REFERENCE |
|---|---|---|
| BACKGROUND BEATING (DUE TO INBALANCE) | A background beat that can be heard when the engine is under load or noise coming from the rod-crankshaft and piston-cylinder liner couplings | D |
NOTE: Before performing the tests indicated below, check the oil level, grade of oil and oil filter. If necessary change engine oil and filter using the prescribed quantities and grades.
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