Fuel Pressure Regulator — Volvo XC90
Category: Fuel System | Severity: medium | Cost: ₹8,000–₹25,000
What is Fuel Pressure Regulator?
Controls fuel pressure in the fuel system.
How Fuel Pressure Regulator Works
Adjusts pressure by returning excess fuel to tank.
Why is Fuel Pressure Regulator Important?
Ensures optimal fuel-air mixture.
Common Problems
- Pressure fluctuation
- Leakage
Symptoms
- Black smoke
- Poor fuel economy
- Rough idle
Causes of Failure
- Diaphragm failure
- Clogging
Impact on Car Performance
Inefficient combustion.
DIY Fix Guide — Step by Step
- Inspect vacuum line
- Replace regulator
Maintenance Tips
- Check during fuel system service
Replacement Cost in India
Estimated range: ₹8,000 – ₹25,000
Where to Buy Online
When to Replace Fuel Pressure Regulator
When fuel pressure becomes unstable.