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 : 2.4L LAF → 2.0L Diesel LNP → LDE, LXV, 2H0, LUW and LFH .
4. Disconnect the heated oxygen sensor 1 wiring harness plug.

1

Heated Oxygen Sensor 1

Caution: Refer to Fastener Caution in the Preface section.

Tighten
42 N·m (31 lb ft)