How to Deal with Loud Engine Noise in a Car?

[HeidiDella]

The causes and solutions for loud engine noise in a car are as follows: 1. Engine noise: The vehicle's engine is a source of noise, and the noise it produces varies with the engine speed. Solution: You can install some high-quality sound-absorbing foam materials on the engine cover, which not only suppresses vibrations caused by the hood but also absorbs a significant amount of noise, with noticeable effects. 2. Noise caused by exhaust pipe leaks: When there is a leak in the intake or exhaust pipe, gas escapes from the leak during engine startup, causing vibrations and noise. Solution: In such cases, it is necessary to inspect the intake and exhaust pipes and replace them to avoid noise. 3. Wind noise: Wind noise occurs when the pressure of the oncoming wind exceeds the sealing resistance of the car doors during high-speed driving, entering the car. The faster the driving speed, the louder the wind noise. Solution: Install or replace the door sealing strips. Since sealing strips are rubber products, they can age over time, leading to reduced sound insulation and sealing effectiveness.

[SanMiles]

When I notice loud engine noise, I can start with some simple checks. For example, listen to the source of the sound—if it's a rattling noise, the belt might be loose and needs adjustment or replacement. A humming sound could indicate insufficient engine oil, so check the dipstick and top up if necessary. While driving, pay attention to the RPM and avoid slamming the accelerator to reduce noise sources. Regular maintenance is crucial; changing the oil every 5,000 kilometers can prevent many noise issues. If I'm unsure, I should promptly visit a repair shop for a professional inspection to avoid minor problems turning into costly repairs. Noise isn't just annoying—it can also cause the engine to overheat, accelerate wear, and shorten its lifespan. In short, don't ignore it; prioritize safety by checking the basics first.

[DiJaxon]

As someone who frequently repairs cars, I'll diagnose the loud noise from a professional perspective. Listen to the sound during startup: a buzzing noise might indicate an air intake system leak, requiring a check of hose seals; a clicking sound could suggest a loose camshaft chain, which needs tightening. Use a stethoscope or your hand to feel for vibrations and locate the issue. After ruling out common causes, test the spark plugs and check the exhaust manifold for cracks that could cause noise. Don't forget to inspect the engine mounts for damage that might amplify vibrations. It's advisable to take the car to a 4S shop for a computer diagnosis to avoid misjudgment and get timely repairs to reduce fuel consumption and extend the vehicle's lifespan. Loud noises indicate potential faults—don't delay.

[StDaisy]

I once encountered a situation where the engine was too noisy while driving, so I went to the garage to check it out. First, check if the oil level is low—if it is, top it up or change the oil. Then, see if the coolant level is too low, as this can affect cooling and worsen the noise. Also, inspect the exhaust pipe connections for any looseness that might cause rumbling vibrations. If the belt is old and making squeaking sounds, applying some lubricant can provide a temporary fix. Finally, start the car and listen. If these simple measures don’t work, ask a friend or visit a quick repair shop for diagnosis—don’t push through it. This saves time and money, preventing minor issues from becoming major ones.