Repair of high pressure fuel pump (HPFP)

What is an HPFP and Why Is It Important?

The high-pressure fuel pump performs several critical functions:

1. Providing high pressure.
   It generates the necessary pressure for precise fuel atomization by the injectors.
2. Regulating fuel delivery.
   The HPFP ensures the exact amount of fuel is supplied according to the engine’s load.
3. Ensuring engine stability.
   Without the proper functioning of the pump, the engine cannot operate smoothly.

Signs of HPFP Malfunction

1. Difficulty starting the engine.
   The engine starts slowly or does not start at all.
2. Reduced power.
   The vehicle loses power, especially during overtaking or on inclines.
3. Increased fuel consumption.
   Pump malfunctions can lead to excessive fuel consumption.
4. Black or white exhaust smoke.
   This may indicate incorrect fuel delivery.
5. Unusual noises.
   Rattling or vibrations in the fuel system area suggest potential HPFP issues.
6. “Check Engine” warning.
   The vehicle’s electronics indicate problems in the fuel system.

Causes of HPFP Malfunction

1. Poor fuel quality.
   Contaminants and impurities can damage the pump’s internal components.
2. Wear and tear from prolonged use.
   Prolonged operation without proper maintenance leads to component wear.
3. Insufficient fuel lubricity.
   Diesel fuel has lubricating properties, but insufficient lubrication can damage the pump.
4. Faulty filters.
   A malfunctioning fuel filter fails to protect the system from contaminants.
5. High pressure and load.
   Consistently high pressure in the system can cause component wear.

How We Repair HPFPs at Autopark-Service

1. HPFP Diagnostics

• We use modern stands to test the pump’s performance and tightness.
• We analyze the pressure level generated by the pump and its compliance with factory specifications.

2. Pump Cleaning

• We remove all contaminants accumulated inside the pump.
• We use ultrasonic cleaning for effective component cleaning.

3. Component Restoration and Replacement

• We restore or replace worn components, such as plungers, valves, and seals.
• We use original spare parts from leading manufacturers: Bosch, Denso, Delphi, Continental.

4. Adjustment and Calibration

• After repair, the pump is adjusted to ensure optimal fuel delivery.
• We calibrate the pump to match factory specifications accurately.

5. Final Testing

• We test the pump on specialized stands, verifying its performance under real conditions.

Why Choose Autopark-Service for HPFP Repair?

1. Modern Equipment.
   We use Bosch DCI 200, Carbon Zap, OUS stands for precise diagnostics and calibration.
2. Experienced Specialists.
   Our team has years of experience repairing HPFPs for various vehicle brands.
3. Quality Guarantee.
   We provide a warranty for all repairs and spare parts used.
4. Transparency.
   All work is agreed upon with the client before starting repairs.
5. 24/7 Availability.
   Our service center operates around the clock, ensuring assistance whenever needed.

Cost of HPFP Repair in Lviv

The cost depends on the type of malfunction and whether component replacement is required.

📞 Call: (067) 346-85-20

📍 Address: Lviv, Solonka, Kiltseva Street, 60

Frequently Asked Questions

1. How often is HPFP diagnostics needed?
   We recommend checking the pump every 50,000–100,000 km or at the first signs of malfunction.
2. Can the pump be restored, or should it be replaced?
   In most cases, the HPFP can be restored, which is much cheaper than a full replacement.
3. Do you repair Bosch, Denso, Delphi, Continental pumps?
   Yes, we specialize in repairing pumps from these brands.

Book HPFP Repair in Lviv

Don’t delay repairing your high-pressure fuel pump, as it is crucial for stable engine operation. Choose professional service at Autopark-Service.

📞 Phone: (067) 346-85-20

📍 Address: Lviv, Solonka, Kiltseva Street, 60

Autopark-Service — your reliable partner for HPFP repair!