You need an OBD-II code reader. Some parts stores can do it for free if you do not have this tool.
2003 chevy tahoe knock sensor
location of knock sensor in 1997 cheverolet Tahoe SUV 305 or 350 engine
you have to remove the intake, and there are 2 knock sensors.
The 4.8, 5.3 and the 6.0 GM engines require removing the intake manifold to replace a knock sensor.
Electronic spark control is not receiving sinal from knock sensor Try replacing knock sensor
There are two knock sensors located in the block. They are just under the intake manifold.
Yes.
The knock sensor sends a voltage pulse to the computer whenever it detects the vibrations caused by metal, such as the conditions caused by the spark knock. When the knock sensor sends a voltage pulse, the computer retards the timingin an effort to stop the spark knock.
It is screewed into the side of the engine over by the starter.
If it is a V8 then there are 2 of them and they are under the intake manifold. You have to remove intake to service them.
You need to test/replace the knock sensor. ireplaced it already.
There is 2 of them and they are underneath the intake manifold. You will have to remove the intake to get to them.