You will need to take the upper intake off and there are two sensors underneath that. When you do this job make sure to replace the wiring harnesses as well.
Location of knock sensor 1991 GM sierra 350 2500?
where is knock sensor on a 2001 sierra 5.3 2wd 1500.
The knock sensor is located under the Intake Manifold and there is a knock sensor 1/ knock sensor 2 on this model,the 2 is the one in the rear.
how do I disconnect the Electrical connection on knock sensor
knock sensor location is under the intake manifold you have to remove intake their is two knock sensors front and rear
The intake manifold basket was a bad design that was replaced with a better design. Sometimes when this basket leaks, it can get the sensor wet and cause it to corrode. Replace the sensor and manifold
how to replace a knock sensor on a 2000 Chevy 6.0 step by step
how to replace a knock sensor on a 2002 hyundai elantra
As you are looking at your truck from the front the knock sensor shoud be on the passenger side right under the manifolds
The knock sensor is on the starter side of the engine. It is abut half way between front and back.
The 4.8, 5.3 and the 6.0 GM engines require removing the intake manifold to replace a knock sensor.
Fortunately, on that model, the knock sensor is under the intake manifold. There are two sensors under there so you might as well replace both while your at it. If you take it to a shop they should only charge for parts on the second one.