GM 12589867
Knock Sensor

Knock Sensor (KS) 2 replacement starts with draining the cooling system because hot engine coolant causes burns and some coolant remains inside the engine water jacket. Unplug the wiring harness connector from the knock sensor while you remove the sensor from the engine block. The installer must avoid applying thread sealant to sensor threads because the sensor arrives factory-coated so additional sealant will reduce its detonation detection capability. Start the knock sensor by hand into its correct position inside the engine block before tightening it to 14 lb ft (19 N.m). Connect the wiring harness first before you install the sensor onto the engine block then fill up your cooling system.

The replacement process starts with Intake Manifold removal before the ks wiring harness assembly and then the ks unit itself. Installation of the Knock Sensor requires you to torque the sensor to 20 n.m (15 lb ft) following the instructions in the service precautions fastener notice. Reinstallation of the ks wiring harness assembly follows after both the Intake Manifold.

A Knock Sensor (KS) servicing begins with Intake Manifold removal and then requires the Knock Sensor wiring harness assembly extraction before taking out the Knock Sensor (KS). After installing the Knock Sensor apply torque at 20 n.m (15 lb ft). The repair process starts with installing the Knock Sensor wiring harness assembly and ends with reintroducing the Intake Manifold into position.

Service of the Knock Sensor (KS) requires successive removal of Intake Manifold then ks wiring harness assembly before ks removal. The installation process starts with ks installation followed by a torque adjustment of 20 n.m (15 lb ft) using the fastener notice from service precautions. First reinsert the ks wiring harness assembly and after that install the Intake Manifold.

To replace turn the Knock Sensor, start off by removing the Intake Manifold, then carefully push up the rubber covers and disconnect the Knock Sensor electrical connectors, and then pull out the knock sensors off. For installation, install the knock sensors and tighten to 20 n.m (15 lb ft); plug the Knock Sensor connector to its electrical connector; push down on the rubber cover; and reinstall the Intake Manifold.

You must remove the Intake Manifold first then disconnect the Knock Sensor electrical connectors while gently pulling up each rubber cover to complete scratch-up of the knock sensors. The fastener notice in service precautions applies to installation so follow it before using a 20 n.m (15 lb ft) torque on the knock sensors. After connecting the Knock Sensor electrical connectors you should push down the rubber covers and reinstall the Intake Manifold.

To remove Knock Sensor, first remove the Distributor and then disconnect the Knock Sensor electrical connector and Knock Sensor bolt and then remove the Knock Sensor. For installation, start off by installing the installation of the new Knock Sensor while ensuring to check the fastener notice and than install the Knock Sensor bolt and tighten it to 25 n.m (18 lb ft). Next, hook the Knock Sensor electrical connector and lastly reinstall the Distributor.

In order to replace the series Knock Sensor (KS) 2, first lift the vehicle. Next, sever the following wiring harness connector from KS and take out KS from the engine block. In service precautions, follow the fastener notice for installation. Mount the KS into the engine block and tighten it up to 19 N.m (14 lb ft). Finally, reconnect the harness connector to the KS.

Before replacing the Knock Sensor (KS) begin by removing the Intake Manifold followed by gently lifting the rubber covers and removing the Knock Sensor electrical connectors before taking out the knock sensors. Begin Knock Sensor installation by tightening the sensors to 20 n.m (15 lb ft) as specified in fastener notice of service precautions. The installation process starts by connecting Knock Sensor electrical connectors followed by pushing down rubber covers before reinstalling the Intake Manifold.

To remove Knock Sensor, first remove the Distributor and then disconnect the Knock Sensor electrical connector and Knock Sensor bolt and then remove the Knock Sensor. For installation, start off by installing the installation of the new Knock Sensor while ensuring to check the fastener notice and than install the Knock Sensor bolt and tighten it to 25 n.m (18 lb ft). Next, hook the Knock Sensor electrical connector and lastly reinstall the Distributor.

The first thing to do to replace the Knock Sensor (KS) 2 is to drain the cooling system/engine block. First, take off the knock sensor electrical connector and afterwards take out the knock sensor. Put the new knock sensor in place and tighten it to a torque of 20 N.m (15 lb ft) following the Fastener Notice in Service Precautions. After attaching the knock sensor's electrical connector, make sure to fill up the cooling system/engine block.

To replace the Knock Sensor (KS) 1, drain the cooling system/engine block first. Remove the knock sensor electrical connector and knock sensor. For installation, apply the new knock sensor making sure the fastening of the new knock sensor is at 20 N.m (15lb ft) using Fastener Notice as per the place in the Service Precautions. Then, attach the knock sensor electrical connector and fill the cooling system/engine block.

In order to replace Knock Sensor 2, remove first the right front wheel and tire. Then, from the wheel well open, disconnect the engine wiring harness electrical connector from the knock sensor. Then, take off the knock sensor bolt (739) and knock sensor (718). For mounting the knock sensor (718) screw to the engine block and mounting the knock sensor bolt (739) which tightened at a torque of 25 N.m (18 lb ft). Then attach the engine wiring harness connection to the knock sensor and install the right front wheel and tire back.

You must start by removing the tire and wheel on the left front side of the vehicle. Disconnect the engine wiring harness electrical connector through the wheel well opening from the knock sensor. Start by removing the knock sensor bolt (739) after disconnecting the knock sensor (718). Application starts with placing the knock sensor (718) on the engine block then installing the knock sensor bolt (739) while tightening it to 25 N.m (18 lb ft). Reconnect the engine wiring harness electrical connector to the knock sensor then install the left front wheel with its tire.

A procedure to service the Knock Sensor involves manifold removal then detachment of wiring harness assembly before extracting the Knock Sensor (KS). First install the Knock Sensor before torquing it to 20 n.m (15 lb ft) using a torque wrench. Put the Knock Sensor wiring harness assembly back before reinstalling the Intake Manifold.

Remove the KS bolt and take out the KS.

Reinstall the knock sensor pigtail as noted during removal, placing it into the retaining clips while ensuring it does not contact any moving parts.

Hand start the knock sensor into the engine block and tighten it to 19 N.m (14 lb ft).

Reconnect the wiring harness connector and fill the cooling system.

The Knock Sensor wiring harness assembly.

Remove the intake manifold.

It should be tightened to 20 N.m (15 lb ft) as per the Fastener Notice in Service Precautions.

Remove the knock sensor itself.

The knock sensor wiring harness assembly.

Remove the KS bolt and take out the KS.

Disconnect the knock sensor electrical connector and remove the knock sensor bolt.

Begin by installing the knock sensor, ensuring to follow the Fastener Notice in Service Precautions.

The KS wiring harness assembly should be removed next.

Reinstall the intake manifold.

Begin by installing the knock sensor, ensuring to follow the Fastener Notice in Service Precautions.