you have to pull off the intake they are under there. you have two you might as well replace both
how do you change the knock sensor in a 2003 Chevy silverado 5.3
under the intake manifold
under the dome
I found in a google search 15ftlbs torque for the knock sensor.
Under the intake manifold there are 2 knock sensors
NO.
Under the intake manifold.
The knock sensor is located on top of the block in a 4.8 2002 engine. The intake will have to be removed to get to the sensor.
Need engine size.
under he intake manifold
The Duramax don't have a knock sensor.
There are two knock sensors on a 2004 2500HD V8 6.0 Chevy Silverado. Both of the sensors are mounted under the intake manifold on the engine.