Spark Knock

[Z71GMC]

My truck has started to spark knock under hard acceleration, it doesn't do it all the time. The SES light came on so I checked the the faults. I can't rememeber exactly what it said, something like Bank 1 knock sensor low signal and Bank 2 knock sensor low signal. How would I go about fixing this? Thanks

[wlvrn1215]

Replace the knock sensors that are throwing a code...they're bad.

[Z71GMC]

Replace the knock sensors that are throwing a code...they're bad.

 

 

Where are they located?

[svensk]

Replace the knock sensors that are throwing a code...they're bad.

 

 

Where are they located?

 

Under the intake manifold, at the top of the block.