Pistons — Nissan Gravite
Category: Engine | Severity: high | Cost: ₹15,000–₹50,000
What is Pistons?
Pistons move up and down inside the cylinders converting combustion energy into mechanical force.
How Pistons Works
Fuel combustion pushes pistons downward, rotating the crankshaft via connecting rods.
Why is Pistons Important?
Essential for power generation in internal combustion engines.
Common Problems
- Wear
- Cracks
- Carbon buildup
- Seizure
Symptoms
- Loss of power
- Blue smoke
- Knocking noise
- High oil consumption
Causes of Failure
- Poor lubrication
- Overheating
- Detonation
- Dirty fuel
Impact on Car Performance
Damaged pistons reduce engine efficiency and may cause engine seizure.
DIY Fix Guide — Step by Step
- Check engine oil level
- Inspect exhaust smoke
- Listen for knocking sounds
- Perform compression test
- Consult mechanic
Maintenance Tips
- Use quality engine oil
- Regular servicing
- Avoid overheating
Replacement Cost in India
Estimated range: ₹15,000 – ₹50,000
Where to Buy Online
When to Replace Pistons
Replace when worn, cracked, or causing compression loss.