No. 21 Engine Noise: Notes
WARNING: This page is about a different variant/trim than selected.
SYMPTOM CHART (ENGINE NOISE)
| 21 |
ENGINE NOISE |
| DESCRIPTION |
- Engine noise from under hood.
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| POSSIBLE CAUSE |
Squeal, click or chirp noise:
- Improper engine oil level
- Improper drive belt tension
- Auto tensioner bearing malfunction
- Generator installation
- Improper installation of purge solenoid valve
- Splash shield or under cover looseness (splashed water to drive belts)
Rattle sound noise:
Hiss sound noise:
- Vacuum leakage
- Loose spark plug
- Air leakage from intake air system
Rumble or grind noise:
- Improper drive belt tension
- Loose parts
- Fluid level low or air in power steering fluid
Rap or roar noise:
- Dynamic dumper looseness
- Exhaust system looseness
- Intake air system looseness
- Variable valve timing actuator malfunction
- Variable tumble control system malfunction
- Improper balancer unit backlash
Other noise:
- Tappet noise
- Timing chain noise
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