Installation Procedure

Fig 1: Locating Knock Sensor Components

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice .

IMPORTANT: DO NOT apply thread sealant to sensor threads. The sensor is coated at factory and applying additional sealant will affect the sensors ability to detect detonation.

Install the knock sensor (1).
Tighten: Tighten the knock sensor to 19 N.m (14 lb ft).
Connect the knock sensor electrical connector (2).
Lower the vehicle.
Fill the cooling system. Refer to Draining and Filling Cooling System (L26, L32 GE 47716 Fill) or Draining and Filling Cooling System (L26, L32 Static Fill) or Draining and Filling Cooling System (LS4 GE 47716 Fill) or Draining and Filling Cooling System (LS4 Static Fill) in Engine Cooling.