On a 2006 Toyota Tundra, the PCV (Positive Crankcase Ventilation) valve is located on the driver's side of the engine, typically on the valve cover. It is a small, cylindrical component that is usually secured with a grommet or a clip. To access it, you may need to remove any components obstructing your view, such as the engine cover. Always refer to the vehicle's service manual for specific instructions and illustrations.
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