GMC Repair: SUV, chevrolet suburban, small harness

Question
I HAVE A 2001 CHEVROLET SUBURBAN 1500 V8 AND I HAVE A PROBLEM WITH FINDING MY KNOCK SENSOR.I REMEMBER READING ONE OF YOUR COMMENTS,IF YOU GOT ONE CODE P0327 WHICH THAT IS ALL I HAD WAS THAT ONE CODE. COULD IT BE MY KNOCK SENSORS OR SOMETHING ELSE? COULD YOU PLEASE DIRECT ME ON FINDING THAT KNOCK SENSOR AND IF IT MAYBE THE PROBLEM  THANKS!

Answer
Hi
the knock sensors are located under the intake manifold in the area between the 2 cylinder heads. (sometimes called the engine valley)
P0327 is for the rear sensor.
You'll need to remove the intake, replace the sensor (I would also recommend replacing the small harness that attaches to the 2 sensors).
You'll need to also replace the intake gaskets.