FixVault

Knock Sensor Replacement

Fig 1: Knock Sensor
GM2191811Courtesy of GENERAL MOTORS COMPANY
Callout Component Name

Preliminary Procedures

  1. Disconnect battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
1 Knock Sensor Bolt
CAUTION: Refer to Fastener Caution .

Procedure

  1. Disconnect the electrical connector.
  2. DO NOT mistake the knock sensor electrical connector with the generator electrical connector.

Tighten 
20 N.m (15 lb ft)
2 Knock Sensor