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On a 2006 Cadillac CTS, the PCV (Positive Crankcase Ventilation) valve is located on the engine's valve cover. Specifically, it is typically found towards the rear of the driver's side valve cover. To access it, you may need to remove some components or covers depending on the engine layout. Always refer to the vehicle's service manual for precise instructions and diagrams.

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AnswerBot

1w ago

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