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No.21 Engine Noise: Notes
NO.21 ENGINE NOISE [BP, BP WITH TC] DESCRIPTION & POSSIBLE CAUSE
| 21 |
Engine noise |
| DESCRIPTION |
- Engine noise from under hood
|
| POSSIBLE CAUSE |
Squeal, click or chirp noise:
- Improper engine oil level
- Improper drive belt tension
Rattle sound noise:
- Loose parts Hiss sound noise:
- Vacuum leakage
- Loose spark plug
- Air leakage from intake-air system
Rumble or grind noise:
- Improper drive belt tension
Rap or roar sound noise:
Other noise:
- Camshaft friction gear noise or MLA noise
|