Where is the knock sensor located in 2002 Chevrolet avalanche?

The knock sensor location on a 2002 Chevrolet Avalanche depends on the engine. There are two common engine choices for that year: the 4.8L and the 5.3L Vortec V8s. Both typically have one knock sensor located on the driver's side (left side) of the engine block.

However, the exact position varies slightly between these engines. To find it precisely:

* Consult a repair manual specific to your Avalanche's engine. This is the most reliable method. A Haynes or Chilton manual will have diagrams showing the sensor's location.

* Use an online parts diagram: Many auto parts websites (like AutoZone, Advance Auto Parts, etc.) allow you to select your vehicle's year, make, model, and engine, then view a diagram showing parts locations. Look for the knock sensor in the engine diagrams.

Without knowing your specific engine size (4.8L or 5.3L), it's impossible to give a more precise location. But the driver's side of the engine block is the place to start searching.