[lenbo06776]

chk.eng. light came on in my 05 durango 4.7 it says knock sensor what is it for and where is it located thanx for the help guys

 

[jkelly16]

It checks for spark knock so the pcm will reduce timing if it detects any. I think there may be two but I'm not sure of the exact locations. May want to try a Google search if you don't get an answer soon.