The knock sensors are located under intake there is two so best to replace both while you have tore down. what usually happens is moisture builds up and causes bad connection. to remove intake remove fuel lines after bleeding pressure!!! all obvious hoses and wiring and i think it is 10 bolts holding intake down. let me know if you need more help
Under intake 2 of them if you have problems doing that take to a pro big job
SOURCE: Where is the location of the knock sensor for a 2005 HD 2500 6.0
HAS TWO KNOCK SENSORS they are both under intake in valley of engine. remove intake and will see two black grommets they are under those best to replace both at same time
SOURCE: 2001 chevrolet suburban knock sensor
you have 2 of them on that vehicle and both of them are located under the intake manifold.
SOURCE: Changing CO2 Sensor on 2003 Chevy Suburban
check the whole exaust sestyem? there should be 4to5
SOURCE: knock sensor location
HI, click the link below to be directed to a full diagram that will show you the actual location of the sensor. 718 will be the actual sensor to extract and 739 is the mounting screw for the KS.
KNOCK SENSOR DIAGRAM
SOURCE: 2005 Toyota Camry - knock sensor
Your sensor went off because it overknocked.
Try using a different type of fuel with a higher octane.
Erase the code and use the better gas. if it comes back then we will worry about replacing it.
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