On the 2007 Chevy Impala with a 3.5L V6 engine, the PCV valve is located on the valve cover, specifically on the driver's side. It is typically situated near the rear of the engine, connected to a hose that leads to the intake manifold. To access it, you may need to remove some components for better visibility. Make sure to check the vehicle's service manual for specific details or diagrams related to your model.
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