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.
2002 Kia Optima L4-2.4LFACTORY OEM SERVICE PROCEDURE
General Torque Specifications
Standard Parts Tightening Torque Table:
NOTES:
1. The torques shown in the table are standard values applicable to tightening performed under the following conditions:
1. Nuts and bolts are made of steel bar, and galvanized.
2. Galvanized plain steel washers are inserted.
3. All nuts, bolts, and plain washers are dry.
2. The torques shown in the table are not applicable:
1. Spring washers, toothed washers and the like are inserted.
2. If plastic parts are fastened.
3. If self-tapping screws or self-locking nuts are used.
4. If threads and surface are coated with oil.
3. It should be standard practice to reduce the torques given in the table to the percentage indicated below:
1. If spring washers are used. 85 %
2. If threads and bearing surfaces are stained with oil. 85 %
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.