What to Do When the Car Makes Abnormal Noises During Startup?

[Garrett]

When a car makes abnormal noises during startup, it is necessary to inspect multiple components of the car for troubleshooting. Below is relevant information on checking abnormal car noises: 1. Inspect the valve chamber: If the car has not been used for a while, the engine oil will return to the oil pan, causing the valve chamber to lack oil. Due to the absence of oil for sealing and lubrication, a hissing sound may be heard from the bottom of the car when it is first started, which is normal. 2. Check the engine belt: Try pinching the drive belt with your fingers and twisting it, ensuring the twist angle is below 90 degrees; if the engine belt is dirty and causes abnormal noises, cleaning it with water or applying some lubricant can eliminate the noise. 3. Inspect the engine mount bolts: Loose engine mount bolts can result in improper installation of the engine support. 4. Check the engine compartment: There might be foreign objects clogging the engine compartment.