2017 Kia Optima Plug-In Hybrid EXFACTORY OEM SERVICE PROCEDURE

Fuel Delivery System

FUEL DELIVERY SYSTEM TIGHTENING TORQUE SPECIFICATIONS

Item kgf.m N.m lb.ft
Fuel tank mounting nut 4.0 - 5.5 39.2 - 54.0 28.9 - 39.8
Fuel pump plate cover mounting bolt 0.2 - 0.3 2.0 - 2.9 1.4 - 2.2
Filler-neck assembly mounting screw 0.8 - 1.2 7.8 - 11.8 5.8 - 8.7
Filler-neck assembly bracket mounting bolt 0.8 - 1.2 7.8 - 11.8 5.8 - 8.7
Accelerator pedal module mounting bolt 0.9 - 1.4 8.8 - 13.7 6.5 - 10.1
Delivery pipe mounting bolt 1.9 - 2.4 18.6 - 23.5 13.7 - 17.4
High pressure fuel pipe function block mounting bolt 1.0 - 1.2 9.8 - 11.8 7.2 - 8.7
High pressure fuel pump mounting bolt 1.3 - 1.5 12.8 - 14.7 9.4 - 10.9
High pressure fuel pipe flange nut 2.7 - 3.3 26.5 - 32.4 19.5 - 23.9
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.

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