OEM 2003 Cadillac CTS Knock Sensor

2003 Cadillac CTS Parts Questions & Experts Answers

• Q: How to replace the Knock Sensor (KS) 2 on 2003 Cadillac CTS?

  A: You should disconnect the knock sensor pigtail from its electrical connector and bracket while removing the accessory mounting bracket with the knock sensor pigtail from retaining clips along with attention to keep the routing correct during installation. Use a wrench to unscrew the bolt at the sensor center before extracting the knock sensor from its engine block position. Before installing the knock sensor it is essential to properly clean the mating surfaces while placing the entire knock sensor contact area directly against the engine block. Put the knock sensor on the engine block without any washers but tighten the bolt to 20 N.m (15 lb ft) torque. Install the knock sensor pigtail into retaining clips before mounting it in position away from moving engine components. Also place the accessory mount bracket during this installation process. The last step involves connecting the knock sensor pigtail to its electrical connector and bracket.