You can run a diagnostic test for the knock sensor, on your 2005 Chevy avalanche, by hooking the engine up to a diagnostic tester.
Where is located the crankshaft sensor in Chevy avalanche 2002 engine 5.3?
05 Chevy avalanche sensor 2 bank 2 located?
Trouble code P0142 means:O2 sensor circuit malfunction (Bank 1 Sensor 3)
you mean knock sensor
Trouble code P0325 means: Knock Sensor 1 Circuit (Bank 1) Replace the Knock Sensor
heater sensor circuit Chevy astro 2000
Trouble code P0030 means: HO2S heater control circuit (Bank 1 Sensor 1)
Yes
It is at the top front left of the motor behind the throttle body.
driver side after catalytic convertor
I have a 2002 Avalanche abd replaced it last year---8.1 liter-----it took my mechanic about 3 hours to get it out/in.
Go to your local LORDCO auto or a PICK & PULL.