Engine knocking noise under acceleration in Hilux
A knocking or tapping sound is heard from the engine when accelerating, especially under load.
Issue Details
- Severity
- high
- Impact
- May lead to serious engine damage if ignored.
- Estimated Repair Cost
- ₹5,000 – ₹40,000
- Affected Years
- All
- Frequency
- Common
Symptoms
- Knocking sound
- Loss of power
Causes
- Poor fuel quality
- Injector issues
Solutions
- Use high-quality fuel
- Clean or replace injectors
Prevention Tips
- Avoid low-grade diesel/petrol
- Regular engine service