What Causes the Abnormal Noise When Starting the Vehicle?
3 Answers
Caused by various reasons. Below are the specific explanations: Reasons: Brake disc oxidation and rust; Foreign objects trapped in the tread pattern of the wheels; Suspension aging, with some supporting components in the suspension failing; The engine cylinder pressure not reaching the optimal state when starting; The engine drive belt being too hard when the car is cold. Starting methods: Adjust the seat before driving to ensure the feet can reach the clutch, brake, and accelerator; For manual transmission cars, engage first gear when starting, the clutch must be fully depressed, place the right foot on the accelerator, turn on the left signal light; Lift the left foot's clutch to nearly halfway and pause for a moment, release the handbrake promptly when feeling the vehicle shake; Lightly tap the accelerator, release the clutch when the car moves forward, and add a bit of throttle to start; For automatic transmission cars, adjust the seat before starting, depress the brake, shift the gear to D position, and start slowly by adding throttle.
I hear strange noises as soon as I start moving the car, and it feels really uncomfortable. I've encountered similar issues before, and it turned out to be possibly caused by worn clutch plates creating friction sounds, or insufficient transmission fluid generating noise. Additionally, loose ball joints in the suspension system, aging shock absorbers can easily produce creaking sounds, and even misaligned tires and brake discs can emit sharp noises. If the sound comes from the front, it's mostly a brake disc issue; if it's from the rear, the drive shaft or differential might be worn. I suggest you stop and check immediately—don't delay. Last time I ignored it, the repair costs doubled. It's safer to find a reliable repair shop for a diagnostic with proper equipment. During regular maintenance, have the mechanic take a quick look at these components to prevent small issues from becoming big problems.
I drive to work every day, and the strange noise when starting the car is really annoying. It's usually a problem with the clutch or transmission system. For example, unstable oil pressure can cause parts to rub and make noise, or cracked rubber parts in the suspension can creak. A clicking sound often indicates damage to the drivetrain, while a squeaking noise is usually caused by sand or dirt on the brake discs. Don’t underestimate these noises—they could be early signs of major issues, such as problems affecting steering safety. You can do a simple self-check: press the clutch in neutral and listen for sounds. If the noise persists, it’s not a clutch issue, and you should visit the 4S shop. Before driving, I always check the tires and chassis—this habit has saved me several repair costs.
