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.
2008 Kia Optima V6-2.7LFACTORY OEM SERVICE PROCEDURE
Intake Manifold
Install the intake manifold assembly with a new gasket to a cylinder head assembly. Tighten the bolts in two steps.
Tightening torque: Step 1(a-h): 3.9-5.9Nm (0.4-0.6kgf.m, 2.9-4.3lb-ft) / Step 2(1-8): 18.6-23.5Nm (1.9-2.4kgf.m, 13.7-17.4lb-ft)
CAUTION:
When installing the gasket on the cylinder head, check the identification marks(LH/RH) not to be installed wrong.
Tightening torque: Step 1(a-h): 3.9-5.9Nm (0.4-0.6kgf.m, 2.9-4.3lb-ft) / Step 2(1-8): 18.6-23.5Nm (1.9-2.4kgf.m, 13.7-17.4lb-ft)
CAUTION:
When installing the gasket on the cylinder head, check the identification marks(LH/RH) not to be installed wrong.
Factory Service Tools
Use the Manual With the Right Hardware
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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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