Kia Niro: Fuel Delivery System / Delivery Pipe Repair procedures

Removal
  

In case of removing the high pressure fuel pump, high pressure fuel pipe, delivery pipe, and injector, there may be injury caused by leakage of the high pressure fuel. So don’t do any repair work right after engine stops.

1.

Release the residual pressure in fuel line.

(Refer to the Fuel Delivery System -"Release Residual Pressure in Fuel Line").

2.

Switch "OFF" the ignition and disconnect the negative (-) terminal of the auxiliary 12V battery.

3.

Remove the intake manifold.

(Refer to Engine Mechanical System - "Intake Manifold")

4.

Remove the high pressure pipe flange nuts (A) by using the special service tool [SST No. 09314 - 3Q100 or 09314 - 27130].

5.

Remove the high pressure fuel pipe (C) after loosening the function block mounting bolt (B).

High pressure fuel pipe function block mounting bolt:

9.8 - 11.8 N·m (0.8 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)

High pressure fuel pipe flange nut:

26.5 - 32.4 N·m (2.7 - 3.3 kgf·m, 19.5 - 23.9 lb·ft)

6.

Remove the delivery pipe & injector assembly mounting bolts (A).

Delivery pipe & injector assembly mounting bolt:

18.6 - 23.5 N·m (1.9 - 2.4 kgf·m, 13.7 - 17.4 lb·ft)

7.

Remove the delivery pipe & injector assembly (A) from the engine.

Installation
  

Do not reuse injector fixing clips.

Install the component to the specified torque.

Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.

Apply engine oil to the injector O-ring.

Do not reuse injector o-rings.

Do not reuse bolts.

When inserting the injector, be careful not to damage the injector tip.

1.

Install in the reverse order of removal.

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