* Modern cars have sophisticated computer systems: Most modern cars, including your LeSabre, have onboard computers that manage engine control, power distribution, and other functions. They are generally self-adjusting and don't require manual resets after common component replacements.
* The alternator's job is charging: The alternator's primary function is to charge the battery. It doesn't directly control the engine's starting system.
* The battery stores power: The battery provides the initial power to start the engine. Replacing it with a new one is a straightforward process.
However, there are a few things to consider:
* Check the battery terminals: Make sure the battery terminals are securely connected to the new battery. Loose connections can cause starting issues.
* Verify wiring: Ensure all wiring related to the alternator and battery is properly connected and secure.
* Check for codes: After the replacement, use an OBD-II scanner to check for any error codes that may have been triggered during the process. These codes can provide insights into any potential issues.
If your LeSabre still won't start after replacing the alternator and battery, here are some additional troubleshooting steps:
* Check the starter: Make sure the starter is working properly. It could be faulty or have a bad connection.
* Inspect the wiring: Look for any damaged or frayed wiring, especially in the ignition system.
* Check for fuel delivery: Verify that the fuel pump is working and delivering fuel to the engine.
Important note: If you're not comfortable working on your vehicle's electrical system, it's always best to consult a qualified mechanic for diagnosis and repair.
