What is the labor on knock sensors for 03 Chevy Avalanche?

The labor cost for replacing knock sensors on a 2003 Chevy Avalanche typically ranges from 2 to 4 hours, depending on the shop's labor rate and the vehicle's specific configuration. This job often involves removing components like the intake manifold to access the sensors, which can add to the labor time. Overall, you can expect labor costs to be between $150 and $400, excluding parts. Always check with a local mechanic for precise estimates.