Similarities: The 2.2L engines in those years are relatively similar. The major components are largely interchangeable.
Differences and Potential Issues:
* Engine Management System (EMS): This is the biggest potential hurdle. The 1997 and 2000 models likely have different engine control modules (ECMs) and potentially different wiring harnesses. You'll need to ensure the ECM from the 2000 engine is compatible with the 1997 car's wiring harness or vice-versa. This might involve rewiring, using a custom harness, or potentially even swapping the entire wiring harness from the donor car. This is a significant undertaking.
* Sensors: While many sensors are likely the same, there's a chance some sensor connectors or even the sensor types themselves have changed slightly. Double-check compatibility.
* Transmission: Ensure the transmission from the 2000 engine is compatible with the 1997 car's transmission. While likely compatible, there might be subtle differences requiring adjustments.
* Exhaust System: The exhaust manifolds and possibly the catalytic converter may differ slightly. You might need to adapt your exhaust system.
* Mounts: While the engine mounts are likely similar, there might be slight differences. Verify compatibility.
* Accessories: Power steering pump, alternator, and A/C compressor are usually interchangeable, but check part numbers for complete assurance.
In short: While feasible, a direct swap isn't guaranteed to be plug-and-play. You'll likely need some mechanical knowledge and potentially some wiring expertise. Before starting, it's crucial to:
1. Identify the exact engine codes: The engine code (found on the engine block) will reveal the specific variations within the 2.2L family. This is crucial for compatibility checks.
2. Compare wiring harnesses: Carefully compare the wiring diagrams for both cars' engine bays.
3. Gather all necessary parts: Plan for potential sensor or component replacements.
4. Consult repair manuals: Having repair manuals for both the 1997 and 2000 Cavaliers is essential.
If you're not experienced with engine swaps and automotive electrical systems, it's highly recommended to seek the assistance of a qualified mechanic. Improperly swapping the engine can lead to serious issues that could damage other parts of the vehicle.
