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The 2006 Dodge Durango 4.7 knock sensor can be found under the intake manifold in the engine block. It's a circular black plastic component with a tube attached and a bronze metal piece inside. As its name suggests, this sensor is designed to detect ignitions that cause knocks and rattles. Although loud backfires are noticeable, various issues can produce sounds that are inaudible to humans. The sensor is capable of detecting these issues and triggering a diagnostic trouble code. A malfunctioning sensor can lead to abnormal engine performance and unusual noises. Ignoring the problem can result in engine failure, so it's important to address a faulty sensor promptly.
The knock sensor for the 2006 Dodge Durango 4.7 can be found below the intake manifold in the engine block.