Engine knocking noise during cold start in ScorpioN
Owners report a loud knocking or tapping sound from the engine when starting the car in the morning, especially in diesel variants.
Issue Details
- Severity
- medium
- Impact
- Unpleasant noise; concern about long-term engine damage.
- Estimated Repair Cost
- ₹1,000 – ₹8,000
- Affected Years
- 2022-2025
- Frequency
- Common
Symptoms
- Knocking sound at startup
- Noise reduces after warm-up
Causes
- Cold engine oil circulation delay
- Fuel combustion timing variation
Solutions
- Use recommended engine oil
- Check injectors and timing
- Avoid hard acceleration when cold
Prevention Tips
- Warm up engine for 1-2 minutes
- Use high-quality fuel