Replace Knock (Detonation) Sensor(s)
Engine
The knock sensor listens for pinging or detonation in the engine and tells the computer to adjust spark timing to prevent damage. A failed sensor triggers a check engine light and can allow dangerous pinging.
Estimated Cost
$150–$450🔒
Parts + labor, based on the parts this service typically requires. Not specific to your vehicle or region — this spans all vehicles, all regions, and all part grades, so treat it as a rough ballpark rather than a quote.