Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2016 Kia Optima EXFACTORY OEM SERVICE PROCEDURE

Repair Procedures: Removal

WARNING: This page is about a different variant/trim than selected.

Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
Release the residual pressure in fuel line. (Refer to "Release Residual Pressure In Fuel Line ".)
Disconnect the injector connector (A).
Remove the wiring harness bracket installation bolt (B).
Remove the mounting nut, and then disconnect the fuel feed tube (C).
Remove the mounting bolt (D), and then remove the delivery pipe & injector assembly from the engine.

Fig 1: Locating Injector Connector, Fuel Feed Tube And Mounting Bolts
Courtesy of KIA MOTORS AMERICA, INC.
Remove the fixing clip (A), and then separate the injector from the delivery pipe.

Fig 2: Locating Injector Fixing Clips

Courtesy of KIA MOTORS AMERICA, INC.

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.