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Auto Electrical Services

Diesel Fuel Injection Service & Repairs in Mascot

Diesel fuel injection servicing and repairs for common-rail and older systems, from injector testing through to pump diagnosis.

Diesel fuel injection systems run at extremely high pressures — modern common-rail systems can exceed 2,000 bar — and even small amounts of fuel contamination or water can cause significant damage to injectors and the high-pressure pump. Symptoms of a developing fault include hard starting, rough idling, loss of power, excessive smoke or a noticeable increase in fuel consumption.

We service and repair both modern common-rail systems and older mechanical diesel injection, testing injector flow and spray pattern, checking fuel pressure, and inspecting the fuel system for contamination before recommending a repair. Catching a developing fault early is significantly cheaper than the damage that follows if it’s left unaddressed.

What's included

  • Common-rail and older diesel injection system servicing
  • Injector flow rate and spray pattern testing
  • Fuel pressure testing
  • Fuel contamination and water inspection
  • High-pressure pump diagnosis
  • Utes, 4WDs, passenger diesels and light commercials

Diesel Fuel Injection — common questions

What are the early signs of a diesel injection fault? +

Hard starting, rough idle, a loss of power, excessive smoke, or noticeably worse fuel economy are all early signs worth having checked before they progress.

Can contaminated fuel damage the injection system? +

Yes, and it’s one of the most common causes of injector and pump damage in diesels. We check for contamination as part of any diesel injection diagnosis.

Do you service older mechanical diesel injection as well as common-rail? +

Yes, we service both modern common-rail systems and older mechanical diesel injection systems.

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Friendly, honest advice and dealer-level diagnostics on all makes and models. Book a service today.

Mon–Fri 7:30am–6pm · Sat & Sun Closed

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