Not enough oil or a spanner in the works.
the knock sensors are located in the top of the engine block. The intake has to be removed to get to the sensors.
One of the most common causes is a leaking gasket on the bottom of the intake. It allows engine oil to be pulled into the intake. Other causes include plugs andwires,
On engine block
The knock sensor is on the starter side of the engine. It is abut half way between front and back.
If your engine knocks than that can be a really bad thing, have you recently ran your truck without oil?
The 1997 Chevy 1500 pickup truck 5.7 liter engine knock sensor can be found on the front of the engine. You will need to remove the front engine cover in order to access the sensor.
In most modern cars the engine turns at 1500-2500 rpm at highway speeds. Since 60mph is a mile a minute, about 1500-2500 times.
It is screewed into the side of the engine block just in front of the starter.Passenger side of the engine. It will have a wire pluged into it.
That engine has 2 knock sensors on it and both of them are underneith the intake manifold. You can not see are get to them until the intake has been removed.
where is knock sensor on a 2001 sierra 5.3 2wd 1500.
You can run a diagnostic test for the knock sensor, on your 2005 Chevy avalanche, by hooking the engine up to a diagnostic tester.
That engine has 2 knock sensors. They are UNDERNEITH the INTAKE MANIFOLD. You will need to remove the intake to even see them and to service them.