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Why would your Buick LeSabre suddenly stop after driving it for a while but the lights and radio remain on?

1.Overheating: An overheated engine can cause vehicles to shut off suddenly to prevent further damage. Keep an eye on your car's temperature gauge or a warning light to avoid this issue.

2.Fuel Issues: If the engine isn't getting the necessary fuel, it will stall. Check your fuel tank is sufficiently filled. Inspect for potentially broken fuel lines or a defective fuel pump.

3.Electrical Issues: A failing alternator or battery can cut off power to the ignition, halting your vehicle. Test the battery and alternator to ensure they are working correctly.

4.Sensor Malfunction: A defective sensor, like a faulty crankshaft or camshaft position sensor, can relay incorrect signals to the Engine Control Unit (ECU), causing the engine to stop. Diagnose and replace any defective sensors.

5.Transmission Problems: Issues within the transmission, like slipping gears or a defective torque converter, can result in sudden stops while driving. Have your transmission inspected if the vehicle stops while you are changing gears.

6.Catalytic Converter Issues: If the catalytic converter becomes clogged or overheats, it can obstruct the exhaust system and cause the engine to stall. Ensure good air flow and get your catalytic converter examined.

7.Computer Problems: Issues within the vehicle's computer system, which regulates most of its functions, can trigger unexpected stops. You may need to update or reprogram the onboard computer.

8.Mechanical Failures: Serious mechanical issues, including a broken timing belt or an internal failure, can instantly halt your vehicle. Get your car checked if it makes unusual noises or vibrates excessively.