Common Rail System — Nissan Gravite
Category: Engine | Severity: high | Cost: ₹20,000–₹80,000
What is Common Rail System?
A fuel injection system used in diesel engines to supply fuel at constant high pressure.
How Common Rail System Works
Stores fuel at high pressure and distributes it to injectors electronically.
Why is Common Rail System Important?
Improves fuel efficiency and reduces emissions.
Common Problems
- Pressure loss
- Injector issues
Symptoms
- Hard start
- Smoke
- Power loss
Causes of Failure
- Contaminated diesel
- Wear
Impact on Car Performance
Reduces diesel engine efficiency.
DIY Fix Guide — Step by Step
- Use high-quality diesel
- Check fuel filter
- Scan ECU
Maintenance Tips
- Regular filter replacement
Replacement Cost in India
Estimated range: ₹20,000 – ₹80,000
Where to Buy Online
When to Replace Common Rail System
Replace if pressure system fails.