Pulley — Nissan Gravite
Category: AC | Severity: medium | Cost: ₹3,000–₹9,000
What is Pulley?
The pulley transfers rotational motion from the engine belt to the AC compressor.
How Pulley Works
It spins continuously with the engine and engages the compressor when the clutch activates.
Why is Pulley Important?
Essential for transmitting engine power to the compressor.
Common Problems
- Bearing noise
- Misalignment
- Wear
Symptoms
- Squealing noise
- Vibration
- AC not working
Causes of Failure
- Bearing failure
- Improper belt tension
- Dust ingress
Impact on Car Performance
Disrupts compressor operation and reduces cooling.
DIY Fix Guide — Step by Step
- Inspect pulley rotation
- Check belt tension
- Listen for noise
- Replace worn pulley
Maintenance Tips
- Keep belt properly tensioned
- Inspect during servicing
Replacement Cost in India
Estimated range: ₹3,000 – ₹9,000
Where to Buy Online
When to Replace Pulley
Replace when noisy or misaligned.