What is the reason for the starter noise when starting the car?

[StWyatt]

The reasons for the starter noise when starting the car are: 1. Engine belt issue: Check the tightness of the engine belt. If there is a problem, it is recommended to replace it. It could also be that the belt is too dirty, and cleaning it with water or lubricating it with a lubricant can eliminate the noise; 2. Noise in the engine compartment: Open the front cover and carefully check for any foreign objects. Blockage by foreign objects can cause a buzzing noise, so it is important to develop the habit of regularly inspecting the engine compartment; 3. Slow return of the starter motor's flywheel: After the engine starts, the flywheel drives the starter motor's flywheel to operate, causing noise. If the noise is only slight, it can be ignored. If it is severe, the motor may need to be repaired or replaced.

[ClaytonAnn]

When starting the car, the starter motor makes noise, a problem I've encountered several times in over a decade of driving. The most common issue is insufficient battery power, causing the starter to turn weakly and produce a grinding sound, as if the engine is about to give up. As the battery ages, its voltage becomes unstable, making the starter prone to problems. Another possibility is severe wear of the gears inside the starter motor, leading to poor engagement with the engine's flywheel and causing a clicking sound when slipping. Poor electrical connections, such as loose battery terminals, can also result in abnormal noises when the starter operates due to insufficient current flow. Additionally, if the starter relay is short-circuited or aged, it may produce a buzzing noise. Ignoring these minor issues can lead to the car failing to start or even breaking down midway. That's why I always check the battery voltage as soon as I hear any unusual noise to ensure a safe drive.

[Kenny]

My car was recently repaired for this issue. When starting, the starter motor makes a buzzing noise, which sounds quite unpleasant. It's mostly because the battery is nearly dead; insufficient power causes the starter to turn slowly and produce abnormal sounds. If the internal components of the starter, such as the motor bearings, are worn, it can create a harsh noise during rotation. Loose or corroded wire connections can also disrupt current transmission, leading to unusual sounds. Additionally, if the flywheel's ring gear on the engine is damaged, the starter may struggle to turn it, resulting in strange noises. I tried tightening the battery terminals myself, but it's best to get a full inspection at a repair shop to prevent the problem from worsening. Regular battery maintenance can prevent this situation—generally, checking the voltage every six months is sufficient.

[Andrea]

When starting the engine, the main noise from the starter is often caused by low battery voltage leading to weak starting power and abnormal sounds; damaged starter gears or worn flywheels causing slipping noises; poor electrical connections such as loose plugs resulting in current fluctuations; or relay faults affecting the control circuit. It is recommended to first check the battery status and connections. If no issues are found, a professional inspection of the starter components should be conducted.

[Ezekiel]

Listen, kid, in my decades of driving, I've seen plenty of such issues. When the starter makes strange noises during ignition, you need to take it seriously immediately. It's most likely a failing battery – an aging battery with insufficient voltage can cause the starter to sound odd. It could also be that the small gear inside the starter is worn out, making a grinding noise when engaging with the engine flywheel. Additionally, loose wiring or a faulty relay can lead to abnormal sounds. Back when I was younger, I once had to tow my car for repairs and found out the flywheel teeth were damaged, costing me a lot afterward. So, get it checked early to avoid bigger problems. Regularly replacing the battery can save you a lot of trouble.

[Tricia]

When the starter makes noise during ignition, my experience is often that the battery is running low, and the unstable voltage causes difficulty in the starter's rotation, resulting in abnormal sounds; or internal wear of the starter, such as clutch plate wear, causes noise; sometimes it's due to corroded wires or loose battery terminals, leading to unstable current and a buzzing sound. Engine flywheel wear is also one of the possible reasons, causing the starter to struggle and produce a jerking sound. Whenever I hear such issues, I usually check if the battery connections are secure. If there's no improvement, I quickly head to the repair shop for a full system test. Neglecting it may lead to starting failure and affect travel safety.