Engine Control System/Fuel System

Fuel Pump Repair Procedures

16steps
~96min
4/5difficulty
010203040502.92N·mlb·ft
Tightening torque found on this page
Done 0 of 16

Inspection

[Fuel Pump]
  1. Turn the ignition switch OFF and disconnect the (-) battery cable.
  2. Remove the fuel pump assembly.
  3. Make sure the engine operates properly when battery voltage is applied to terminals 2 and 4 of the fuel pump connector (A).
    Pin No. Description
    1 Fuel Level Sensor Signal
    2 Fuel Pump Motor (+)
    3 Fuel Level Sensor Ground
    4 Fuel Pump Motor Ground
  4. Turn the ignition switch OFF and disconnect the (-) battery cable.
  5. Remove the fuel pump assembly.
  6. Using an ohmmeter, measure the resistance between terminals 1 and 3 of the sender connector (A) at each float level.
    Pin No. Description
    1 Fuel Level Sensor Signal
    2 Fuel Pump Motor (+)
    3 Fuel Level Sensor Ground
    4 Fuel Pump Motor Ground
  7. Also make sure the resistance changes smoothly when the float is moved from the "E" position to the "F" position. [Analog Cluster Type]
    Position Resistance (Ω) Capacity (L)
    E 198 ~ 205 5
    1/2 65 ~ 67 37,5
    F 7 ~ 9 67

    [Digital Cluster Type]
    Position Resistance (Ω) Capacity (L)
    E 198 ~ 205 5
    1/2 72,7 35
    F 7 ~ 9 67
[Fuel Sender]

Removal

  1. Relieve the residual fuel pressure in the fuel line. (Refer to Fuel System - Repair Procedures - "Relieve Residual Fuel Pressure in Fuel Line").
  2. Remove the floor mat after opening the trunk.
  3. Remove the fuel pump service cover (A) in the trunk.
  4. Disconnect the fuel pump control module and fuel pump extension connector (A).
  5. Disconnect the quick-connector of the fuel supply tube (B).
  6. Disconnect the fuel tank pressure sensor connector (C).
  7. Disconnect the fuel tank pressure sensor connector (D).
  8. Remove the fuel pump plate cover (E) after loosening the bolts.
  9. Remove the fuel pump from the fuel tank.

Installation

  1. Install in the reverse order of removal.
    Be careful of the fuel pump direction (refer to the groove in the fuel tank).
    Fuel pump plate cover bolt: 2.0 ~ 2.9 N·m

Test yourself

A quick Kia Cadenza VG Owner's Manual quiz: every answer comes with an explanation and a link to the manual page.