Knock sensor location

The knock sensor is located in the lower part of the engine block.
Tighten the knock sensor to 19 N.M (14 lb ft)

Knock Sensor (3.4L VIN E)On lower left rear of engine, below exhaust manifold.

Knock Sensor (Bank 1) (3.8L VIN K)On lower left side of engine, near starter.

Knock Sensor (Bank 2) (3.8L VIN K)On lower right side of engine.
Thank you.

Check engine light on ? What code ? There are many different (DTC'S) - diagnostic trouble codes that can set for knock sensors ! There all don't mean that you replace the sensor .
DTC P0324: Knock Sensor (KS) Module Performance
DTC P0325: Knock Sensor (KS) Circuit Bank 1
DTC P0326: Knock Sensor (KS) Performance
DTC P0327: Knock Sensor (KS) Circuit Low Bank 1
DTC P0328: Knock Sensor (KS) Circuit High Bank 1
DTC P0330: Knock Sensor (KS) Circuit Bank 2
DTC P0332: Knock Sensor (KS) Circuit Low Bank 2
DTC P0333: Knock Sensor (KS) Circuit High Bank 2

The knock sensor (KS) system enables the control module to control the ignition timing for the best possible performance while protecting the engine from potentially damaging levels of detonation. The sensors are located below each cylinder head on the engine block. The KS produces an AC voltage signal that varies depending on the vibration level during engine operation. The control module adjusts the spark timing based on the amplitude and the frequency of the KS signal. The control module receives the KS signal through 2 isolated signal circuits. The control module learns a minimum KS noise level at idle and uses calibrated values for the rest of the RPM range. The control module should monitor a normal KS signal within the noise channel.
Knock Sensor Replacement - Bank 1
Remove the exhaust manifold lower heat shield. Refer to Exhaust Manifold Lower Heat Shield Replacement.
Disconnect the engine wiring harness electrical connector (1) from the bank 1 knock sensor (2).
Loosen the knock sensor bolt and remove the knock sensor.
Knock Sensor Replacement - Bank 2
Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
Remove the engine oil filter. Refer to Engine Oil and Oil Filter Replacement .
Lower the vehicle.
Disconnect the engine wiring harness electrical connector (2) from the bank 2 knock sensor (3).
Loosen the knock sensor bolt and remove the knock sensor.

This vehical has two knock sensors bank 1 and bank 2 ! bank 2 sensor screws into the side of the engine block closest to the firewall. and it is above the crank sensor. Knock Sensor (KS) Bank 1 sensor is on front side of engine block right of the oil filter and on the other side of knock sensor is the oil pressure sending unit.

P0325 Knock Sensor 1 Circuit (Bank 1 or Single Sensor) -Circuit Malfunction
P0326 Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)
P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)
P0328 Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
P0329 Knock Sensor 1 Circuit Input Intermittent (Bank 1 or Single Sensor)
P0330 Knock Sensor 2 Circuit (Bank 2) -Circuit Malfunction
P0331 Knock Sensor 2 Circuit Range/Performance (Bank 2)
P0332 Knock Sensor 2 Circuit Low Input (Bank 2)
P0333 Knock Sensor 2 Circuit High Input (Bank 2)
P0334 Knock Sensor 2 Circuit Input Intermittent (Bank 2)
P0335 Crankshaft Position Sensor -Circuit Malfunction
P0336 Crankshaft Position Sensor -Range/Performance
P0337 Crankshaft Position Sensor -Low Input
P0338 Crankshaft Position Sensor -High Input
P0339 Crankshaft Position Sensor -Intermittent
P0340 Camshaft Position Sensor A Circuit (Bank 1 or Single Sensor) -Circuit Malfunction
sorry would a play with this to know for sure ,check the wiring plugs onto the sensors to make sure their not full of oil or corroded

The P0327 means Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor).
the knock sensor is located in the front of the engine located behind the oil dip stick just to the left.
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Ktag K-TAG

the knock sensors are located on the cylinder heads. the connect to the wiring harness almost directly in the middle of the intake manifolds on the center of the top of the engine. There are two, one for each bank, with each having two sensors per bank. Bank 1 is cylinders 1-6 which is located on the driver's side I beleive.

bank #1 knock sensor on lower front of engine block near starter, bank #2 knock sensor on lower rear of engine block next to oil filter.

They are Located UNDER Intake Manifold !! #1 bank in Front #2 Back.

1. Remove the intake manifold.
2. Gently pry up the rubber covers.
3. Disconnect the knock sensor electrical connectors.
   1. Remove the knock sensors.
   INSTALLATION PROCEDURE
   
   NOTE: Refer to Fastener Notice in Service PrecautionsInstall the knock sensors. Tighten Tighten the sensor to 20 N.m (15 lb ft)
   
   1. Connect the knock sensor electrical connectors.
   2. Push down on the rubber covers.
   3. Install the intake manifold.
   
   

Knock Sensors are located below the intake manifold or intake plenum and mounted to the block. They are circular and have a bolt at the center. On V6s,8s etc. and flat styled motors, they will have two knock sensors (bank 1 and 2). Bank 1 or 2 relate to V6s/8s/10s etc., or flat styled motors which have two separate heads and exhaust manifolds. Each manifold is a bank, so if there are two manifolds there are two banks. Hopefully this helps

if its a cmfi or csefi injection system theres 2 knock sensors 1 on each side of engine block,1 under the left bank of block,the other under right bank of block,tbi inj. theres 1 in front of starter.