Hear strange noises coming from the engine compartment? Don't ignore them!

When a car makes a “strange” noise from the engine compartment, it can be a warning sign that a problem is quietly occurring. If the car owner ignores or delays in checking and fixing it, the initial small noises can lead to serious and expensive damage. So, what is the cause of the noise and how should it be handled?

1. Rattles, metal bangs: Dangerous signs from the engine

If you hear a soundrattleIf the noise is emitted when the car is running, especially when accelerating, it is likely that the crankshaft, connecting rod or valve are having problems. Common causes may be due to lack of lubrication or poor quality oil, causing the parts to not be fully protected.

How to handle:

- Check engine oil level immediately.
- If the noise persists, take the vehicle to a garage to have the oil pump system and internal engine components checked.

2. Squeaking sound when starting or steering: Could be due to the belt

Language long whistleThe noise when starting the engine or turning the steering wheel is usually caused by the power steering belt or alternator belt slipping due to wear or being too loose.

How to handle:

- Check belt tension and condition.
- Replace if the cord is cracked, rotten or hardened.

3. “Crashing” sound when the car is running slowly: Could be the spark plug or injector

When the vehicle is operating at low speed, it makes noise.clatter steadily, the cause may come from the ignition or fuel system, specifically worn spark plugs, misfires or clogged fuel injectors.

How to handle:

- Check spark plugs, clean or replace.
- Use injector cleaning additives to maintain performance.

4. “Knock-knock” sound from under the chassis: Suspension warning

Language Knock KnockSquealing noises coming from under the vehicle when it goes over potholes or speed bumps are a sign that the suspension, tie rods or engine mount rubbers are worn.

How to handle:

- Check the undercarriage, especially the joints and shock absorbers.
- Replace damaged rubber parts or tie rods.

5. “Growling” sound when braking: The braking system is having problems

When you step on the brake and hear a soundgrowlor squeal loudly, most likely the brake pads are worn touching the disc, or the brake disc is grooved.

How to handle:

- Check brake pads and brake discs.
- Replace if worn beyond safety limit.

6. Noise from air conditioner: Fan or compressor warning

Language scream softlyThe noise emitted when turning on the air conditioner may be due to the fan bearing being worn out, or the air conditioner compressor showing signs of damage. Do not ignore it because it may affect the cooling system.

How to handle:

- Check cabin fan and compressor.
- Clean or replace depending on condition.

7. “Clack” sound when shifting gears: The gearbox needs maintenance.

If you hear a soundstrongWhen shifting into D or R, especially when the car has been running for a long time, this is a sign that the automatic transmission is deteriorating or lacking oil.

How to handle:

- Check gearbox oil, change periodically with correct type as recommended by manufacturer.

When should the entire engine compartment be inspected?

To be more proactive in maintenance and damage prevention, you should check the engine compartment in the following cases:

- The car started making strange noises, even if just for a moment.
- After every 5,000 - 10,000 km of operation, especially for vehicles that travel a lot in urban areas or hot and humid climates like Vietnam.
- Before going on a long trip or journey.
When the vehicle shows signs of reduced power, increased fuel consumption or difficulty starting.

Gartz – Companion to your engine compartment health

With many years of experience in the field of engine care and protection,Gartznot only provides high quality lubricants, coolants and specialized additives, but also accompanies users inImprove technical knowledge and proper vehicle maintenance.

At Gartz you will find:

- Synthetic and semi-synthetic engine oil meets international standards.
- Specialized automatic transmission oil for CVT, ATF, DCT, DSG gearboxes...
- Anti-boiling, anti-corrosion, heat-resistant coolant with multiple levels of protection.
- Modern circulating oil changer supports clean, thorough oil change.
- Performance additives, cleaning and comprehensive protection for engines and transmissions.

Conclude

Unusual noises from the engine compartment are never a small matter. They are the first signs of deeper damage within the technical system.listen, check regularly and use high quality protection productsis the best way to maintain the health and performance of your vehicle.

Gartz advises you to:
- Take action immediately when your car makes a "strange" noise! Don't delay and your beloved car will have to be "put on the operating table".

Visit website gartzlube.comto discover the right product and get technical advice from a Gartz expert.

Gartz – Quality makes the brand
The trusted choice of professional garages nationwide.