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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2001MONTE CARLO V6-3.4L VIN EREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTEMISSION CONTROL SYSTEMSCATALYTIC CONVERTERSERVICE AND REPAIR
2001 Chevrolet Monte Carlo V6-3.4L VIN E
Catalytic Converter: Service and Repair
2001 Chevrolet Monte Carlo V6-3.4L VIN ESECTION Service and Repair
Catalytic Converter Replacement
Removal Procedure
Replace the entire converter assembly in order to properly service the three way catalytic converter.
1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Remove the exhaust manifold pipe nuts from the exhaust manifold pipe studs.
3. Remove the catalytic converter nuts from the exhaust pipe.
4. Remove the three-way catalytic converter.
5. Clean the three-way catalytic converter mating surfaces.
Installation Procedure
Notice: To prevent internal damage to the flexible coupling of the catalytic converter assembly, the converter must be supported. The vertical movement at the rear of the catalytic converter assembly must not exceed 6 degrees up or down.
1. Install a new catalytic converter gasket.
2. Install a new exhaust manifold pipe gasket.
3. Position and support the new three-way catalytic converter under the vehicle.
4. Install the exhaust pipe to the three-way catalytic converter with the catalytic converter nuts. Do no tighten the nuts.
Notice: Refer to Fastener Notice in Service Precautions.
5. Install the exhaust manifold pipe nuts to the exhaust manifold pipe studs.
- Tighten the exhaust manifold pipe nuts to the exhaust manifold pipe stud to 32 Nm (26 ft. lbs.).
- Tighten the catalytic converter nuts to the 34 Nm (25 ft. lbs.).
6. Lower the vehicle.
7. Inspect the exhaust system for leaks.
Removal Procedure
Replace the entire converter assembly in order to properly service the three way catalytic converter.
1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Remove the exhaust manifold pipe nuts from the exhaust manifold pipe studs.
3. Remove the catalytic converter nuts from the exhaust pipe.
4. Remove the three-way catalytic converter.
5. Clean the three-way catalytic converter mating surfaces.
Installation Procedure
Notice: To prevent internal damage to the flexible coupling of the catalytic converter assembly, the converter must be supported. The vertical movement at the rear of the catalytic converter assembly must not exceed 6 degrees up or down.
1. Install a new catalytic converter gasket.
2. Install a new exhaust manifold pipe gasket.
3. Position and support the new three-way catalytic converter under the vehicle.
4. Install the exhaust pipe to the three-way catalytic converter with the catalytic converter nuts. Do no tighten the nuts.
Notice: Refer to Fastener Notice in Service Precautions.
5. Install the exhaust manifold pipe nuts to the exhaust manifold pipe studs.
- Tighten the exhaust manifold pipe nuts to the exhaust manifold pipe stud to 32 Nm (26 ft. lbs.).
- Tighten the catalytic converter nuts to the 34 Nm (25 ft. lbs.).
6. Lower the vehicle.
7. Inspect the exhaust system for leaks.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.