There's 4 on that truck, There about 3 to 4 inches long with an electric wire in the end of them. They are screewed into the exhaust pipe/ pipes. start up at the engine were the pipes hook to the exhaust manifolds and work your way towards the muffler and you will find them.
The 2002 Silverado 4.8 liter engine knock sensor is located on the back of the crankshaft. The back engine cover will need to be removed in order to view the sensor.
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.
where is knock sensor located on a 99 Silverado 1500 4.3
how do you change the knock sensor in a 2003 Chevy silverado 5.3
how do I disconnect the Electrical connection on knock sensor
knock sensors on a 2005 silverado are located under the intake manifold
on a 6.0 ltr eng.it is located under the intake manifold there are 2 of them
Its under the intake manifold.
I found in a google search 15ftlbs torque for the knock sensor.
how to replace a knock sensor on a 2002 hyundai elantra
On a 2002 4.3, the knock sensor is located behind the driver side cylinder head. The knock sensor is very hard to reach.
There are 2 knock sensor under the intake manifold, You will need to remove the intake to get to them.