Where is knock sensor on 2003 Saturn Ion 2?

The knock sensor on a 2003 Saturn Ion 2 is located on the engine block, typically near the intake manifold or cylinder head. It is usually positioned on the driver's side of the engine, mounted directly to the block. To access it, you may need to remove some components, such as the intake manifold, depending on the specific engine layout. Always refer to a repair manual for detailed instructions and safety precautions.