Asked in GMC Sierra
GMC Sierra

Where is the Knock sensor in a 2000 GMC Sierra?

Answer

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Wiki User
06/08/2009

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