The knock sensor senses vibrations caused by engine knocks and then sends signals to the powertrain control module (PCM). If a knock is detected, the PCM will retard the timing to protect the engine from damaging pre-ignition.View Full Product Listing
Think TechSmart First: Direct Replacement
The Problem: On GM 8-cylinder engines, the knock sensor wiring harnesses can become frayed or cracked.
Our Response: TechSmart's Knock Sensor Wiring Harness is a direct-fit replacement for the damaged part. Plus, it's made with high-temp wiring, so it can withstand excessively hot temperatures. The part covers more than 9 million VIO.