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 MANUALSCHEVROLET2001CAVALIER LS, 2.4 TREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 212 (ENGINE CONTROLS - 2.2L (L61) INTRODUCTION)REPAIR INSTRUCTIONSHEATED OXYGEN SENSOR (HO2S) REPLACEMENT (PRE CATALYTIC CONVERTER)INSTALLATION PROCEDURE

2001 Chevrolet Cavalier LS, 2.4 T

Installation Procedure

2001 Chevrolet Cavalier LS, 2.4 TSECTION Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Sunfire and 2004 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: A special anti-seize compound is used on the oxygen sensor threads. The compound consists of a liquid graphite and glass beads. The graphite will burn away, but the glass beads will remain, making the sensor easier to remove. New or service sensors will have the compound applied to the threads. If a sensor is removed and is to be reinstalled, the threads must have an anti-seize compound applied before installation.

Coat the threads of the oxygen sensor with anti-seize compound, if necessary.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the oxygen sensor.

Fig 1: Oxygen Sensor & Harness Connector
Courtesy of GENERAL MOTORS CORP.

Tighten: Tighten the oxygen sensor to 30 N.m (22 lb ft).
Connect the oxygen sensor harness connector.
Install the exhaust manifold heat shield. Refer to Exhaust Manifold Replacement (2.2L (L61)) in Engine Exhaust.

Fig 2: Removing & Installing Exhaust Manifold Heat Shield
Courtesy of GENERAL MOTORS CORP.

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.