Engine knocking sound under acceleration in Fortuner
Users hear a knocking or tapping noise from the engine when accelerating, especially in diesel variants.
Issue Details
- Severity
- high
- Impact
- Can damage engine if ignored.
- Estimated Repair Cost
- ₹5,000 – ₹60,000
- Affected Years
- 2016-2024
- Frequency
- Occasional
Symptoms
- Knocking sound
- Loss of smoothness
Causes
- Poor fuel quality
- Injector issue
Solutions
- Use premium fuel
- Clean/replace injectors
Prevention Tips
- Refuel from trusted pumps