Asked in GMC Sierra
GMC Sierra

Where is the Knock sensor in a 2000 GMC Sierra?


User Avatar
Wiki User

they are located under intake manifold The #1 sensor is located in the front of the engine and the #2 sensor is located in the back of the engine. Remember to replace the intake gaskets once you replace the sensor/s. The total time it took me to pull the intake and locate the bad sensor was about 6 hours. Hope this helps