Knock Sensor Replacement Cost

This is a national average for all makes and models, but you can make it more accurate by adding your car info and ZIP.
See full list of repairs »
See full list of repairs »
$325   to   $443
Labor: $245 - $310
Parts: $80 - $133
Estimate does not include taxes and fees.

Only use factory OEM knock sensors and be sure to check for any relevant Technical Service Bulletins (TSBs), necessary software updates, and re-calibration procedures.

When a knock sensor fails, the engine may lack power, have poor acceleration, ping or knock on acceleration, and get poor fuel economy.

The Check Engine Light may illuminate with a fault code set for one or more knock sensors.

A knock sensor code isn't always triggered by a defective knock sensor. It can be triggered by a malfunctioning EGR system, a lean air-to-fuel ratio, worn ignition components, a cooling system problem, or an engine mechanical problem.

RepairPal Certified shops pass a rigorous 42-point annual inspection by our master mechanics for quality work and fair prices.

  • Never overpay or RepairPal will refund you the difference.
  • Guaranteed quality work backed by a minimum 12-month / 12,000-mile warranty.