Heated Oxygen Sensor Replacement - Sensor 2

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.

Callout	Component Name
WARNING: In order to avoid being burned, do not service the exhaust system while it is still hot. Service the system when it is cool. Preliminary Procedure Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection Disconnect the electrical connection.
1	Heated Oxygen Sensor CAUTION: Refer to Fastener Caution . Tighten 42 N.m (31 lb ft) Special Tools EN-6179 Heated Oxygen Sensor Remover / Installer. For equivalent regional tools, refer to Special Tools (Diagnostics Tools) .

Callout

Component Name

WARNING:

In order to avoid being burned, do not service the exhaust system while it is still hot. Service the system when it is cool.

Preliminary Procedure

Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection
Disconnect the electrical connection.

Heated Oxygen Sensor

CAUTION:

Refer to Fastener Caution .

Tighten
42 N.m (31 lb ft)
Special Tools
EN-6179 Heated Oxygen Sensor Remover / Installer.
For equivalent regional tools, refer to Special Tools (Diagnostics Tools) .