The typical answer is that the 2001 S-10 uses two catalytic converters if it has the 4.3L V6, while the 2.2L inline-4 generally uses one. Exact installation can vary by market or aftermarket modifications, so checking the vehicle’s service manual or VIN-based documentation is advised.
Catalytic converter counts by engine
Below are the typical configurations for the two main engines offered in the 2001 S-10 lineup.
2.2L inline-4 engine
Overview: The 2.2L S-10 commonly uses a single catalytic converter in the exhaust system, along with standard oxygen sensors to monitor emissions.
- Number of catalytic converters: 1
Conclusion: For most 2.2L S-10s, there is one catalytic converter in the factory exhaust setup.
4.3L V6 engine
Overview: The 4.3L V6 typically employs a dual-catalyst arrangement, with two catalytic converters in series to meet emissions requirements.
- Number of catalytic converters: 2
Conclusion: The dual-cat arrangement is standard for the 4.3L V6 in the 2001 S-10, though verify on your specific truck in case of regional differences or aftermarket changes.
Summary
In practice, the 2001 Chevrolet S-10 with the 4.3L V6 usually has two catalytic converters, while the 2.2L inline-4 typically has one. Always confirm your vehicle’s exact configuration by inspecting the exhaust layout or consulting the VIN/service manual.