Removal Procedure
- When major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.
- When performing work in the engine compartment or under the vehicle, ensure that the hood is fully open, or opened to its secondary latch. When the hood is opened to the secondary latch, the vehicle will disable the remote start features from the key fob and OnStar mobile app. Failure to open the hood, or open the hood to the secondary latch while doing a repair in the engine compartment or under the vehicle can result in inadvertent vehicle starting which could result in personal injury or damage to a vehicle.
- Disconnect the battery ground cable from the battery. Refer to Battery Negative Cable Disconnection and Connection .
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
- Disconnect the engine wiring harness (3) from the knock sensor (2).
- Remove the knock sensor to engine block retaining bolt (1).
- Remove the knock sensor (2) from the engine block.
WARNING:
To avoid any vehicle damage, serious personal injury or death:
WARNING:
Refer to Protective Goggles and Glove Warning .
WARNING:
Refer to Battery Disconnect Warning .