Kia Cadenza YG: Fuel Delivery System / Fuel Line Repair procedures

Kia Cadenza YG 2016-2021 Service Manual / Engine Control / Fuel System / Fuel Delivery System / Fuel Line 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.
[Low pressure fuel line]
1.
Turn the ignition switch OFF, and then remove battery (-) cable.
2.
Release the residual pressure in fuel line.
(Refer to the Fuel Delivery System - Repair Procedures - "Release Residual Pressure in Fuel Line").
3.
Disconnect the low pressure fuel quick-connector (A) and remove the installation nuts (B) and bolts (C).

4.
Disconnect the vapor hose (A) which is connected from the PCSV.

5.
Remove the fuel tank.
(Refer to Fuel Delivery System - " Fuel Tank")
6.
Disconnect the vapor tube quick-connector (A).

7.
Open the vapor tube and low fuel line fixing clip (A) to using driver.
8.
Remove the installation bolt, and then release the fuel line fixing clip (B).

9.
Disconnect the fuel & brake line protect (A) from the fixing clip (B).

10.
Disconnect the fuel line quick-connecter (A).

11.
Remove the installation nut (A), and then open the fuel line fixing clip(B) to engine room low.

12.
Remove the fuel line.

[High pressure fuel line]
1.
Turn the ignition switch OFF, and then remove battery (-) cable.
2.
Release the residual pressure in fuel line.
(Refer to the Fuel Delivery System - Repair Procedures - "Release Residual Pressure in Fuel Line").
3.
Remove the intake manifold.
(Refer to Engine Mechanical System - "Intake Manifold")
4.
Remove the high pressure fuel pipe.
(Refer to Fuel Delivery System "High Pressure Fuel Pump")

Installation
   
•
Do not use already used injector fixing clip again.
   
•
Install the component with the specified torques.
•
Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
1.
Install in the reverse order of removal.
   
•
Use the special service tool [SST No.: 09314-3V100] to install the high pressure fuel pipe.

High pressure fuel pipe installation nut:
29.4 ~ 35.3 N.m (3.0 ~ 3.6 kgf.m, 21.7 ~ 26.0 lb-ft)
High pressure pipe bracket installation bolt:
7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.74 lb-ft)
High pressure pipe function block installation bolt:
7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.74 lb-ft)
Fuel line fixing clip installation nut:
3.9 ~ 5.8 N.m (0.4 ~ 0.6 kgf.m, 2.8 ~ 4.3 Ib-ft)

    Specification Pressure [KPa (kgf/cm², psi)]Output Voltage (V)50 (0.51, 7.3)0.3600 (6.12, 87.0)2.51100 (11.2, 159.5)4.51200 (12.2, 174.0)5

    Removal 1. Open the fuel filler door and then remove the filler-neck installation screw (A). 2. Lift the vehicle. 3. Remove the rear-LH wheel, tire, and the inner wheel house.

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