1. Starter motor issues: The starter motor is responsible for engaging with the engine's flywheel and turning the engine over to start it. If the starter motor is damaged or malfunctioning, it can produce a grinding noise. This can be caused by worn-out starter gears, a faulty solenoid, or a weak battery.
2. Transmission problems: If the transmission is damaged or has low fluid levels, it can also produce a grinding noise when starting the car. This can be caused by worn-out gears, a faulty clutch, or a low transmission fluid level.
3. Engine damage: In some cases, a grinding noise when starting the car can indicate more serious engine damage, such as worn-out bearings or a damaged crankshaft. This is more likely if the grinding noise is accompanied by other symptoms, such as reduced engine power or unusual vibrations.
To pinpoint the exact cause of the grinding noise, it's best to take your Toyota Lucida to a trusted mechanic for proper diagnosis and repairs.