Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHRYSLER1999CIRRUS L4-2.4L VIN XREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSOXYGEN SENSORSERVICE AND REPAIROXYGEN SENSOR 1/2 DOWNSTREAM
1999 Chrysler Cirrus L4-2.4L VIN X
Oxygen Sensor 1/2 Downstream
1999 Chrysler Cirrus L4-2.4L VIN XSECTION Oxygen Sensor 1/2 Downstream
Oxygen Sensor 1/2 Downstream:
The downstream heated oxygen sensor threads into the exhaust pipe behind the catalytic convertor.
REMOVAL
1. Raise vehicle.
2. Disconnect electrical connector from sensor.
3. Disconnect sensor electrical harness from clips along the body.
4. Remove sensor using an oxygen sensor crow foot wrench such as Snap-On tool YA8875 or equivalent.
INSTALLATION
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� 771-64 or equivalent. New sensors have compound on the threads and do not require an additional coating. Tighten the sensor to 28 N.m (20 ft. lbs.) torque.
2. Connect sensor electrical harness to clips along body.
3. Connect electrical connector to sensor.
4. Lower vehicle.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.