Replace Fuel Injector Sydney Eastwood Car

The fuel delivery system on most modern cars includes fuel injectors. They are responsible for precisely delivering the right amount of fuel into your engine so it burns evenly and efficiently. With wear and tear, deposits from low-grade fuels, and over time, one or more fuel injectors can become plugged or leak fuel into the engine. It’s typically cars with more than 100,000km that require fuel injector replacement, but an unexpected problem could require replacement sooner. Since your fuel injectors pulse constantly while the engine is running, all of them may require replacement around the same time.

What is a fuel injector?

Fuel injectors are the final piece of your fuel system where fuel exits the system and enters the engine. It’s a compact, electronically-controlled valve attached to the fuel rail and it’s consistently under pressure. Your engine has one fuel injector per cylinder, and the fuel injection process is controlled precisely to allow for maximum efficiency and power at all times. Fuel injectors are made of a metal body machined to precise specifications and topped with a plastic cap and electrical connector. A tiny electrical solenoid operates a pintle valve at the bottom of the injector. The fuel rail attaches to the top of each injector and an electrical connector sends the fuel injector a signal to open and close the pintle valve. Debris and fuel contaminants can plug up the pintle causing it to spray fuel inconsistently, not at all, or leak too much fuel into the engine. Once a fuel injector exhibits symptoms of failure, it must be replaced.

Symptoms you require fuel injector replacement

• Check Engine Light is illuminated
• The engine runs rough or there’s a dead miss in a cylinder
• There’s a raw fuel smell from the engine or the exhaust

Before you begin the process:

You need to think about safety. Always keep fire safety in mind when you are working with fuel. You also need to be sure you are wearing eye protection. Even if you’ve released the pressure in the fuel injection system, there could be some fuel flying when you start disconnecting high-pressure lines and removing injectors. If you are not sure how to replace it, go to the one has more experience car repair mechanic to do it.  

How are fuel injectors replaced?

1. The technician removes any components blocking access to the fuel injector including the intake plenum, wiring, or vacuum lines
2. The fuel line is disconnected from the engine fuel rail, the tool need:

• Allen wrench set
• Boxed end wrenches
• Drip pan
• Flashlight
• Flat tip screwdriver
• Floor jack
• Fuel hose quick disconnect kit
• Fuel resistant gloves
• Jack stands
• Protective clothing
• Ratchet with metric and standard sockets
• Safety glasses
• Torque wrench
• Torque bit set
• Wheel chocks

3. The fuel rail is removed from the engine with the fuel injectors attached

      4.The faulty fuel injector is removed and a new one is fitted in its place

     5.The fuel rail and fuel line are refitted and the engine components are put back in place

     6.The technician runs the engine and road tests the car to confirm the repair is complete