Severe spark knock (pinging) can damage the engine. Knock sensors detect spark knock (pinging) in the engine. They send that info to the ECM (Engine Control Module). The ECM makes temporary adjustments in engine timing to eliminate the spark knock.
Three altogether. Two upstream and one down stream.
Yes
The Chevy Colorado came out in 2004
There are two knock sensors on a 2004 2500HD V8 6.0 Chevy Silverado. Both of the sensors are mounted under the intake manifold on the engine.
Truck Universe - 2004 Paint Shop Chevy was released on: USA: 29 June 2013
I found in a google search 15ftlbs torque for the knock sensor.
Where you get your dipstik from
Yes it will
Yes it will.
Pimp My Ride - 2004 Neil's Chevy 'Luv' Truck 1-9 was released on: USA: 2 May 2004
try haynes.com.
We need to know what engine you have to answer that.