Upstream Oxygen Sensor (1/1)
WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
The exhaust manifold, exhaust pipes and catalytic converter(s) become very hot during engine operation. Allow engine to cool before removing oxygen sensor. Failure to allow engine to cool before removal may result in personal injury caused by burns.
CAUTION:
When disconnecting sensor electrical connector, do not pull directly on wires going into oxygen sensor (O2S). Damage to the oxygen sensor may occur.
- Disconnect and isolate the negative battery cable. If equipped with an Intelligent Battery Sensor (IBS), disconnect the IBS connector first before disconnecting the negative battery cable.
- If equipped, disconnect oxygen sensor wire harness from retainer (3).
- Disconnect oxygen sensor wire harness connector (2).
- Remove the wire harness protector (1).
- Remove the oxygen sensor (2).