How do you torque a valve cover on a Toyota Previa?

To torque a valve cover on a Toyota Previa, first ensure that the engine is cool and the valve cover is clean. Use a torque wrench to tighten the valve cover bolts in a crisscross pattern to ensure even pressure. The recommended torque specification is typically around 7.2 to 9.0 ft-lbs (10 to 12 Nm), but it's best to consult the specific service manual for the exact specifications. Always double-check the torque after the initial tightening to ensure proper sealing.