Where is the knock sensor in a 2003 Impala V6 3.42 VIN-E?

The knock sensor location on a 2003 Chevrolet Impala V6 3.4L (VIN E) is on the passenger side of the engine block, near the rear. It's usually fairly close to the transmission bell housing. However, the exact position can vary slightly depending on specific engine casting variations.

You'll likely need a shop manual or a detailed diagram specific to your year and engine to pinpoint it precisely. A picture search online for "2003 Impala 3.4L knock sensor location" might also be helpful. Be cautious when searching, as some diagrams might be for different engine variations.

Remember to consult a repair manual before attempting any repairs, as working on the engine can be complex.