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 137 (ENGINE EXHAUST SYSTEM)REPAIR INSTRUCTIONSCATALYTIC CONVERTER REPLACEMENT (2.4L)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 2002 Pontiac Sunfire and 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
- Install the three-way catalytic converter seals.
- Install the three-way catalytic converter to the intermediate pipe. Tighten the intermediate pipe bolts to 30 N.m (22 ft lbs).
- Install the three-way catalytic converter to the exhaust manifold pipe.
- Install the exhaust manifold pipe bolts. Tighten the exhaust manifold pipe bolts to 45 N.m (33 ft lbs).
- Lower the vehicle.
- Connect oxygen sensor.
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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.