Kia Rio: Fuel Delivery System / Fuel Pump

Kia Rio 2017-2021 YB Service Manual / Engine Control / Fuel System / Fuel Delivery System / Fuel Pump

Repair procedures

Inspection

[Fuel pump]

1.	Turn ignition switch OFF and disconnect the negative (-)battery cable.

2.	Remove the fuel pump assembly.

Check motor operation by fuel pump connector (A) connecting power(No.2) and ground(No.4)

Pin No.	Description
1	Fuel sender signal (+)
2	Fuel pump motor (+)
3	Fuel pump motor (-)
4	Fuel sender ground (-)

[Fuel sender]

Using an ohmmeter, measure the resistance between terminals 1 and 3 of sender connector (A) at each float level.

Pin No.	Description
1	Fuel sender signal (+)
2	Fuel pump motor (+)
3	Fuel pump motor (-)
4	Fuel sender ground (-)

Also, check that the resistance changes smoothly when the float moves from "E" to "F".

Position	Resistance(Ω)	Capacity (L)
E	398 ~ 305	2.7
1/2	85.5 ~ 87.5	23.4
F	14 ~ 16	44.1

Removal

1.	Release the residual pressure in fuel line. (Refer to Delivery System - “Release Residual Pressure in Fuel Line”)

2.	Remove the rear seat. (Refer to Body - "Rear Seat Assembly")

3.	Remove the fuel pump service cover (A).

4.	Disconnect the fuel pump connector (A).

5.	Disconnect the fuel feed tube quick-connector (A), the vapor tube quick-connector (B) and the vapor hose (C).

Remove the plate cover (A) after removing the installation bolts and then remove the fuel pump from the fuel tank.

Fuel pump plate cover installation bolt:

2.0 ~ 2.9 N.m (0.2 ~ 0.3 kgf.m, 1.4 ~ 2.2 lb-ft)

Installation

Installation is reverse of removal.

Carefully note the fuel pump direction during installation. (Refer to the groove on the fuel tank.)

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