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Heated Oxygen Sensor Replacement - Sensor 1

Fig 1: Heated Oxygen Sensor - Sensor 1
GM2557073Courtesy of GENERAL MOTORS COMPANY
Heated Oxygen Sensor Replacement - Sensor 1

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 Procedures

  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection (without Start/Stop System) .
  2. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  3. Remove the exhaust manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement (LDE, LXV, 2H0, LUW and LFH) , Exhaust Manifold Heat Shield Replacement (2.4L LAF) , Exhaust Manifold Heat Shield Replacement (2.0L Diesel LNP) .
  4. Disconnect the heated oxygen sensor 1 wiring harness plug.
1 Heated Oxygen Sensor 1
CAUTION:

Refer to Fastener Caution .


Tighten 
42 N.m (31 lb ft)