knock sensor replacement on 2002 Chevrolet Silverado 2500 HD

im not sure where my knock sensor is located and what the best approch is can you help

Asked by for the 2002 Chevrolet Silverado 2500 HD
1 answer
I believe there are two of them under the intake. Have a qualified shop do this work. Use estimator link on repairpal home page for your area.