02 tahoe bad knock sensor

[02TahoeBoy]

The "service engine soon" light came on a day ago and i just got it checked out. The shop says it's my Knock sensor. I know what it is and what it does but i was wondering if this is something i can fix myself. Also, if anyone could give me a detailed location of this thing that'd be great. It's a 2002 2wd Tahoe LS with the 5.3L V8. All i know is it's under the intake, which sounds like an excuse to get a K&N to me *EDIT*: Wanted to add this incase it can help, the code that came up is P0196.

 

[JKmotorsports]

Knock sensors (there are two) are located on the lifter valley cover underneath the intake manifold. You'll need to remove the entire manifold/plenum/fuel rail assembly to access them.

 

[41racing]

This is a common problem on the 5.3's. The knock sensor is probably all corroded up. It sits down in a well in the valley pan and collects mositure. You will likely need a harness too. On the new one the tsb says to seal the harness with silicone so it don't happen again.