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How to replace a 1999 saturn knock sensor? Where is it located on the motor?

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It is located on the back side of the engine below the intake manifold. hope this helps:how to replace a 1999 saturn knock sensor? - 929510b.gif

Posted on May 23, 2009

  • Chris
    Chris May 23, 2009

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Knock sensor for 2007 Saturn outlook. I can't pass emissions test!


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.

Nov 12, 2016 | Saturn Cars & Trucks

1 Answer

How to replace the oxygen sensor


There are two sensors, one on the exhaust manifold the other on the catalytic converter. The exhaust manifold is the easy one to replace, the other the car needs to be on a lift.

Changing the O2 sensor will improve you gas mileage,

Jul 01, 2014 | 1999 Saturn SL

1 Answer

Show me where is the knock sensor located on the motor of a 1999 kia sportage


the knock sensor should be on the passenger side of the motor a short distance from the oil filter on a stand off on the block. can be tricky to get to but you loose no coolant changing it

May 02, 2011 | 1999 Kia Sportage

1 Answer

Location of knock sensor on a 1998 Saturn 4 cylinder


A knock sensor is threaded into the engine block and is supposed to sense when the engine starts to ping or spark knock and reduces the ignition timing accordingly.The knock sensor is located on the side of the engine.
  • Turn the ignition OFF.
  • Raise the vehicle.
  • Disconnect the knock sensor harness connector.
  • Remove the knock sensor attachment bolt and the knock sensor.

  • Important: The larger metal contact area of the knock sensor MUST be toward the engine block. DTC P0327 may result if the sensor is installed backwards.

  • Install the knock sensor and attachment bolt with the larger metal contact area toward the engine block.

  • Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

  • Sep 22, 2010 | 1998 Saturn SL

    1 Answer

    1999 rx 300 3.0 knock sensor how do i replace a knock sensor?


    remove intake manifold and air intake chamber completely, the knock sensors are located in middle of engine

    Sep 06, 2010 | 1999 Lexus RX 300

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    i have toyota windom 4vz-fe i need locate knock sensor

    May 31, 2009 | 1999 Toyota Camry

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