Spark Plugs — Nissan Gravite
Category: Engine | Severity: medium | Cost: ₹800–₹4,000
What is Spark Plugs?
Spark plugs ignite the air-fuel mixture in petrol engines.
How Spark Plugs Works
Creates an electric spark to initiate combustion.
Why is Spark Plugs Important?
Essential for engine starting and smooth running.
Common Problems
- Fouling
- Wear
Symptoms
- Misfire
- Hard start
Causes of Failure
- Carbon buildup
- Old plugs
Impact on Car Performance
Reduces efficiency and causes misfires.
DIY Fix Guide — Step by Step
- Inspect plugs
- Clean or replace
- Check ignition system
Maintenance Tips
- Replace every 20,000–40,000 km
Replacement Cost in India
Estimated range: ₹800 – ₹4,000
Where to Buy Online
When to Replace Spark Plugs
As per service interval or if faulty.