PT Cruiser L4-2.4L (2008)
Oxygen Sensor: Service and Repair
Installation
1/1 Upstream - 2.4L
1/1 UPSTREAM - 2.4L
1. After removing the sensor, the exhaust manifold threads must be cleaned with an 18 mm X 1.5 + 6E tap. If reusing the original sensor, coat the
sensor threads with an anti-seize compound such as Loctite(R) 771-64 or equivalent. New sensors have compound on the threads and do not
require an additional coating. Tighten the sensor to 41 Nm (30 ft. lbs.) torque.
2. Connect electrical connector to sensor (2).
3. Install the negative battery cable.
4. Install the air cleaner lid and makeup air hose.
1/2 Downstream - 2.4L
1/2 DOWNSTREAM - 2.4L
The downstream heated oxygen sensor threads into the exhaust pipe behind the catalytic convertor.
1. After removing the sensor, the exhaust manifold threads must be cleaned with an 18 mm X 1.5 + 6E tap. If reusing the original sensor, coat the
sensor threads with an anti-seize compound such as Loctite(R) 771-64 or equivalent. New sensors have compound on the threads and do not
require an additional coating. Tighten the sensor to 41 Nm (30 ft. lbs.) torque.
2. Connect sensor electrical harness to clips along body.
3. Connect electrical connector to sensor.
4. Lower vehicle.
5. Install the negative battery cable.
6. Install the air cleaner lid and makeup air hose.