Fuel Injector: Service and Repair

Fuel Injector

Removing








The fuel system is under constant pressure even with engine off. Before servicing the fuel rail, fuel system pressure must be released.

- Release fuel system pressure. Refer to => [ Fuel System Pressure Release Procedure ] Service and Repair.

- Disconnect and isolate the negative battery cable.


When removing the fuel rail from the lower intake manifold, one or more fuel injectors may remain in the intake manifold resulting in residual fuel spilling onto the engine from the fuel rail.

- Remove the air inlet hose, upper intake manifold, and fuel rail (2). Refer to => [ Fuel Rail ] Service and Repair.







• Number 2 fuel injector removal shown, all other fuel injectors similar.

- Remove the fuel injectors (1) from the fuel rail (2).







• Number 2 fuel injector removal shown, all other fuel injectors similar.

- Remove the fuel injectors (1) from the lower intake manifold.







- Remove and discard all fuel injector O-ring seals (1).

Installing







- Lightly lubricate new O-ring seals (1) with engine oil and install on the fuel injector (2).







• Number 2 fuel injector installation shown, all other fuel injectors similar.

- Install the fuel injectors (1) to the fuel rail (2).







- Install the fuel rail, upper inlet manifold and air inlet hose. Refer to => [ Fuel Rail ] Service and Repair.

- Connect the negative battery cable.

- Start the engine and check for leaks.