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.
2009 Jeep Commander 2WD V8-5.7LFACTORY OEM SERVICE PROCEDURE
Cylinder Head Assembly
Cylinder Head Torque
Tighten cylinder head bolts 1 through 10 34 Nm (25 ft. lbs.)
Tighten cylinder head bolts 11 through 15 20 Nm (15 ft. lbs.)
Tighten cylinder head bolts 1 through 10 54 Nm (40 ft. lbs.)
Tighten cylinder head bolts 11 through 15 20 Nm (15 ft. lbs.)
Rotate cylinder head bolts 1 through 10 90°
Tighten cylinder head bolts 11 through 15 34 Nm (25 ft. lbs.)
Surface Variation - Head-to-Block
Cylinder Head For Out-of-flatness 0.0508 mm (0.002 in.)
Intake Manifold
Intake Manifold Bolts 12 Nm (105 in.lbs.)
Camshaft Sprocket
Camshaft Sprocket Bolt 122 Nm (90 ft.lbs.)
Exhaust Manifold
Left Side
Right Side
Exhaust Manifold-to-Cylinder Head 25 Nm (18 ft.lbs.)
Tighten cylinder head bolts 1 through 10 34 Nm (25 ft. lbs.)
Tighten cylinder head bolts 11 through 15 20 Nm (15 ft. lbs.)
Tighten cylinder head bolts 1 through 10 54 Nm (40 ft. lbs.)
Tighten cylinder head bolts 11 through 15 20 Nm (15 ft. lbs.)
Rotate cylinder head bolts 1 through 10 90°
Tighten cylinder head bolts 11 through 15 34 Nm (25 ft. lbs.)
Surface Variation - Head-to-Block
Cylinder Head For Out-of-flatness 0.0508 mm (0.002 in.)
Intake Manifold
Intake Manifold Bolts 12 Nm (105 in.lbs.)
Camshaft Sprocket
Camshaft Sprocket Bolt 122 Nm (90 ft.lbs.)
Exhaust Manifold
Left Side
Right Side
Exhaust Manifold-to-Cylinder Head 25 Nm (18 ft.lbs.)
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.