Injectors are a crucial component of a truck’s fuel system. Their proper operation directly affects fuel efficiency, engine power, and environmental performance. However, over time, they wear out, get clogged, and may fail.

In this article, we will cover:
✅ Key signs of injector malfunctions
✅ Steps of diagnostics and truck injector repair
✅ Repair of injectors for popular truck brands
✅ Urgent and major injector repair
✅ Where to repair truck injectors in Lviv?

Signs of Injector Malfunctions in Trucks

Truck injectors operate under high pressure and tend to wear out over time. The main symptoms of malfunction include:

  • Increased fuel consumption
  • Loss of engine power
  • Black or white smoke from the exhaust pipe
  • Engine misfires and vibrations
  • Difficulties starting the engine

If you own a Volvo FH, MAN TGA, DAF XF, Mercedes-Benz Actros, or Scania R-Series, and notice these issues, it’s time to get diagnostics and injector repair at AutoPark-Service Workshop in Lviv.

How Are Diesel Truck Injectors Diagnosed?

Before repairs, a comprehensive diagnostic check is performed, including:

  • Computer diagnostics – reading error codes from the ECU
  • Testing on a specialized stand – evaluating injection pressure
  • Spray pattern analysis – checking injection uniformity
  • Exhaust gas analysis – detecting injection failures

For Common Rail systems (e.g., in DAF XF, Mercedes-Benz Actros), diagnostics are especially crucial since pressure deviations can lead to rapid injector failure.

Injector Restoration and Repair for Trucks

Based on the diagnostics results, the appropriate repair method is chosen:

🔧 1. Cleaning truck injectors

If contaminants are minor, ultrasonic or chemical cleaning is performed, extending injector lifespan without part replacement.

🔧 2. Restoring truck injectors

If the injectors are worn but still repairable, the process includes:

  • Replacing nozzles
  • Changing sealing rings
  • Adjusting injection pressure

🔧 3. Major truck injector repair

For heavily worn components, a full replacement is performed, adapting the injectors to the fuel system.

Injector Repair for MAN, DAF, Volvo, Scania, and Mercedes-Benz

Each manufacturer designs injectors differently, requiring a custom repair approach.

Volvo FH Injector Repair

Volvo trucks use the Common Rail system, which demands precise pressure regulation.

The repair process includes:

  • Computer diagnostics of Volvo injectors
  • Cleaning from carbon deposits
  • Restoring injection pressure settings
  • Testing on a stand

MAN TGA, TGX Injector Repair

MAN trucks use unit injectors, which require regular servicing.

Repair process:

  • Testing injectors on a specialized stand
  • Ultrasonic cleaning
  • Replacing nozzles and seals
  • Adjusting injection pressure

DAF XF Injector Repair

DAF trucks feature Bosch injectors, which are durable but prone to fuel leaks over time.

Main repair procedures:

  • Checking injectors for leaks
  • Adjusting injection pressure
  • Replacing nozzles in case of severe wear

Mercedes-Benz Actros Injector Repair

Mercedes-Benz Actros trucks are equipped with Bosch injectors, which are sensitive to fuel quality.

Repair process includes:

  • Diagnosing injection pressure
  • Ultrasonic cleaning
  • Calibrating injection parameters

Where to Repair Truck Injectors in Lviv?

If you need diesel truck injector repair, visit AutoPark-Service Workshop in Lviv.

Why choose our service?

  • Injector diagnostics on professional stands
  • Use of original spare parts
  • Warranty on repair work
  • Highly experienced mechanics

Don’t wait for injectors to fail completely – schedule maintenance at AutoPark-Service and extend your truck’s lifespan!

Popular Services:

  • Repair of injectors for MAN, DAF, Volvo, Scania, and Mercedes-Benz
  • Truck injector diagnostics and repairs
  • Injector adjustment and restoration for trucks
  • Major injector repair for heavy-duty trucks

Contact AutoPark-Service in Lviv and keep your truck running smoothly!