Fixing Noises Emitted From Car Engines and Exhaust Systems

Engine, often likened to the "heart" of a car, is the most important part, converting energy (gasoline, oil, electricity) into kinetic energy so the car can move.

Exhaust system is an indispensable part of every car. It plays an important role in collecting, processing and discharging exhaust gases from the engine into the outside environment.

According to Dr. Sarah Miller, an expert from the Environmental Transport Research Center (2024) in 'Impact of Exhaust System Maintenance': 'A damaged exhaust system not only causes noise, but also increases toxic emissions by 45% and reduces fuel efficiency by 25%.

Noise emitted from the car's engine and exhaust system Not only is it annoying, it is also a warning sign that your car may have a serious problem. Understanding the different types of noises and their causes will help you take timely measures to protect the health of your beloved car.

Some common noises from car engines and exhaust systems

There are 7 most common noises including:

• Squealing noise: Occurs when there is an engine problem, usually related to the compressor in the air conditioning system or low oil level in the power steering system. Components such as the belt, water pump, and radiator fan can be the main cause.
• Clicking: Usually indicates that the engine is low on oil or that a valve is about to loosen. This sound can be a sign that immediate inspection is needed to prevent further damage.
• Clicking or knocking: If you hear this sound coming from the front of the engine, it could be due to a lack of oil in the cylinder head, a fuel leak, or insufficient oil pressure. This is a serious sign that needs to be checked immediately.
• Hissing, gurgling or sizzling: These sounds often occur when the engine or cooling system is overheating. This can lead to serious damage if not addressed promptly.
• Hissing: Occurs when the combustion process in the engine is not perfect. The cause may be due to a misfire problem such as a bad spark plug or faulty spark plug wire.
• Exhaust noise: Usually caused by a clogged or leaking exhaust system. This is a problem that needs to be addressed immediately to avoid exhaust pollution entering the vehicle cabin.
• Pre-ignition: May be caused by water in the internal combustion system, leading to uneven combustion and damage to the engine.

According to research by Dr. James Anderson, Director of Research at the Michigan Automotive Technology Institute (2023) in 'Early Detection of Engine Noise Problems': 'Early detection and timely treatment of abnormal engine noises can reduce repair costs by 78% and extend engine life by 35%.

Causes of car engine & exhaust system noises

Each type of noise has a specific cause:

• Squeaking noise: Due to malfunctioning parts such as the belt, power steering pump or water pump. According to a survey, about 30% of problems related to squeaking noise come from the air conditioning system.
• Clattering: Usually caused by lack of lubrication, a common problem that many drivers encounter. According to statistics, nearly 20% of cars experience this problem at least once in their lifetime.
• Clicking or knocking: Associated with low oil pressure. Research shows that about 15% of knocking cases are caused by a faulty valve.
• Gurgling sound: Often occurs when the engine overheats, with about 25% of cases related to cooling problems.

How to fix car engine noise & exhaust system

Once you have determined the cause of the noise, there are a number of remedies you can take:

• Check and top up oil: If the noise is related to low oil levels, you can top up the engine yourself. However, if the oil pressure is not up to par, take your car to a garage for a check-up.
• Replace damaged parts: If the noise is coming from the exhaust system, you should replace the damaged muffler or exhaust pipe sections.
• Ignition System Adjustment: For ignition system problems, adjust the ignition timing according to the manufacturer's instructions and check the spark plugs and high-voltage wires.
• Professional Technician Check: For clicking or knocking sounds that are difficult to determine the cause, it is best to take your car to a reputable garage for a thorough inspection.

Recognizing and promptly handling noises from the engine and exhaust system not only helps protect the vehicle but also ensures the safety of the driver and passengers. If you encounter unusual sounds from your vehicle, do not hesitate to seek help from auto repair experts to ensure the vehicle is always operating in the best condition.

FAQ – Frequently Asked Questions

1. Why is engine noise important?

Engine noise is an early warning sign of mechanical problems. According to research, about 70% of engine failures can be detected through abnormal sounds.

2. How much does it cost to repair each type of noise?

Repair costs can range from VND500.000 to VND5.000.000 depending on the type of problem. For example, replacing spark plugs can cost around VND1 million, while replacing the exhaust system can cost up to VND5 million.

3. What are the long-term effects of not dealing with noise?

If not addressed promptly, noise problems can lead to more serious damage, reducing engine life by up to 30%, and increasing repair costs.

4. What precautions are in place to minimize noise?

Preventative measures include regular maintenance, regular oil level checks, and the use of high-quality spare parts to ensure optimal performance. See the article now: Notes when applying soundproofing to cars The results are shared in detail on the website.

5. How to check and maintain periodically to avoid noise?

Regular inspections should include checking the oil level, changing the oil every 5.000 km, checking the spark plugs every 10.000 km, and checking the cooling system at least once a year.

6. Garage specializes in repairing all types of engine noise & exhaust systems effectively, good price in HCM?

Thanh Phong Auto is one of the leading auto maintenance and repair centers in Ho Chi Minh City, established in October 10. With more than 2013 years of experience in the field of car care, we are proud to have a team of professional engineers and technicians.

At Thanh Phong Auto, we offer a wide range of services to meet our customers' needs, including:

• Regular maintenance and servicing: We follow a strict maintenance process with service intervals ranging from 5.000 km to 100.000 km, helping to prolong the life of your vehicle and ensure optimal performance.
• Engine System Repair: Our team of technicians are capable of quickly detecting and fixing any problems related to engines, braking systems, electrical systems and many other components.
• Professional car care services: We provide services such as interior cleaning, car polishing, ceramic coating to protect paint, insulation film stickers and many other beauty services to keep your car in perfect condition.
• Genuine spare parts: Thanh Phong Auto commits to using genuine spare parts with clear origin, ensuring quality and durability for all services.
• 24/24 rescue service: We provide emergency rescue service for customers who have problems on the road, ensuring your safety and convenience.

Thanh Phong Auto always puts service quality first with a scientific and transparent working process. Customers will be clearly informed about the cost before performing the service, along with a reasonable warranty for each service. With dedication and responsibility in work, Thanh Phong Auto has built a solid reputation in the hearts of customers.

Come to Thanh Phong Auto to experience the most professional car repair and maintenance service in Ho Chi Minh City!