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Home >> Kia >> 2020 >> Optima EX Premium >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 52 (Fuel Delivery System - 2.4L (Except HEV)) >> High Pressure Fuel Pump >> Repair Procedures >> Removal

Repair Procedures: Removal

WARNING: This page is about a different variant/trim than selected.
WARNING: 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. Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
  3. Disconnect the fuel pressure control valve connector (A) and the fuel feed tube quick-connector (B).
    G12932939Courtesy of KIA MOTORS AMERICA, INC.
    NOTE: Open the clamp cover (B) before disconnect the quick connector. (If the clip is applied)
    G12932940Courtesy of KIA MOTORS AMERICA, INC.
    CAUTION: When removing the quick-connector with the clip removing tool (A), be careful not to damage the plastic clip (B).
    If the clip is damaged, fuel line leak can be occurred due to a bad connection.
    G12932941Courtesy of KIA MOTORS AMERICA, INC.
  4. Remove the high pressure fuel pipe.

    (Refer to Fuel Delivery System - "FUEL LINE ")

  5. Remove the installation bolts (A), and then remove the high pressure fuel pump (B) from the cylinder head assembly.

    High pressure fuel pump mounting bolt: 

    12.8 - 14.7 N.m (1.3 - 1.5 kgf.m, 9.4 - 10.9 lb.ft)

CAUTION: Unscrew in turn the two bolts in small step (0.5 turns). In case of fully unscrewing one of the two bolts with the other bolt installed, the housing surface of the cylinder head may be broken because of tension of the pump spring.
G12932942Courtesy of KIA MOTORS AMERICA, INC.