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.
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HOMESERVICE MANUALSTOYOTA2006SIENNA FWD V6-3.3L (3MZ-FE)REPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYSYSTEM SPECIFICATIONSTORQUE AND SEQUENCE
2006 Toyota Sienna FWD V6-3.3L (3MZ-FE)
Torque and Sequence
2006 Toyota Sienna FWD V6-3.3L (3MZ-FE)SECTION Torque and Sequence
MAIN BEARING CAP
Using several steps, install and tighten the 16 main bearing cap bolts uniformly in the sequence shown in the illustration.
Torque 22 Nm (224 kgf-cm, 16 ft. lbs.)
Mark the front side of the bearing cap bolts with paint.
Retighten the bearing cap bolts by 90° in the same sequence shown as step (1).
Using several steps, install and tighten the 8 main bearing cap bolts uniformly in the sequence shown in the illustration.
Torque 27 Nm (275 kgf-cm, 20 ft. lbs.)
CRANKSHAFT PULLEY
Align the keyway of the pulley with the key located on the crankshaft and slide the pulley into place.
Torque 220 Nm (2250 kgf-cm, 162 ft. lbs.)
CONNECTING ROD CAP
Tighten the bolts in several steps by the specified torque.
Torque 25 Nm (250 kgf-cm, 18 ft. lbs.)
Mark the front side of each connecting cap bolt with paint.
Retighten the cap bolts by 90° as shown in the illustration.
HARMONIC BALANCER - CRANKSHAFT PULLEY
Align the keyway of the pulley with the key located on the crankshaft and slide the pulley into place.
Torque 220 Nm (2250 kgf-cm, 162 ft. lbs.)
RENDER: 1.0x
NO RELATED
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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.