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Where is the knock sensor located on a 2004 5.3 liter engine?

The knock sensor on a 2004 5.3L engine (likely a GM LS series) is typically located on the passenger side of the engine block, near the front (closest to the radiator). It's usually bolted directly to the block.

However, the exact location can vary slightly depending on the specific vehicle model. To be absolutely certain, you should:

* Consult your vehicle's repair manual: This is the most reliable source for the exact location.

* Use a repair database: Sites like AllDataDIY or Mitchell 1 (subscription required) offer detailed diagrams.

* Search online for images: Search for "[your vehicle year, make, and model] 5.3L knock sensor location" to find pictures from other owners.

Be aware that accessing the sensor might require removing other components for better visibility.