Browse
Property
Property For SaleProperty For Rent
Cars
Used CarsOthers
For Sale
Antiques CollectiblesApparelBaby Kids ItemsBooks， Movies And MusicElectronicsFree StuffGarden OutdoorHealth BeautyHome GoodsHome Improvement SuppliesMusical InstrumentsOffice SuppliesPet SuppliesSporting GoodsTicketToys GamesTransportationOthers
Services
BusinessCraftsDesign And WebEventsHome ImprovementLegalLessonsPersonalPetsPhotographyRepair And Technical SupportWellnessWriting， Translation， And TranscriptionOthers
Jobs
AccountingAdministration & Office SupportAdvertising， Arts & MediaBanking & Financial ServicesCall Center & Customer ServiceCEO & General ManagementCommunity Services & DevelopmentConstructionConsulting & StrategyDesign & ArchitectureEducation & TrainingEngineeringFarming， Animals & ConservationGovernment & DefenseHealthcare & MedicalHospitality & TourismHuman Resources & RecruitmentInformation & Communication TechnologyInsuranceLegalManufacturing， Transport & LogisticsMarketing & CommunicationsMining， Resources & EnergyReal Estate & PropertyRetail & Consumer ProductsSalesScience & TechnologySelf EmploymentSport & RecreationTrades & ServicesOther
Community
Activities & GroupsArtists & MusiciansClasses & LessonsEventsFriendship & NetworkingLost & FoundRideshareSports TeamsVolunteersTravel & Travel PartnersSkills & Language SwapOther

What Causes the Sounds from a Car?

1 Answers
JamesonAnn
09/07/25 7:16am
The following sounds from a car may indicate these issues: Clunking sound: A heavy metallic impact noise, most likely caused by severe wear of the engine mounts, which leads to clunking when the engine speed changes. It could also indicate damage to the front or rear suspension or low transmission fluid. Tapping sound: Similar to a knocking sound but quieter. Check if low-quality gasoline is being used when this sound occurs. Ticking sound: Possibly due to a damaged driveshaft universal joint, small stones hitting the tires, or bent/loose fan blades. Hissing sound: Resembles a leaking balloon, often caused by issues in the air conditioning or cooling system. If the cooling system is faulty, fluid may be visible under the car. Additionally, a large tire puncture or vacuum chamber leak in the engine can produce this sound. Knocking sound: A dull thudding noise. This is mostly due to internal engine problems, likely from vehicle aging, or damage to bearings or engine valves.
Was this review help?
20
1
Share
More Forum Discussions

Do I need to bring a one-inch photo for Subject 4?

For the Subject 4 exam, you only need to bring your ID card; no other items are required. The Subject 4 exam consists of 50 questions, primarily in the form of case studies, images, and animations, with a full score of 100 and a passing score of 90. Subject 4, also known as the Subject 4 theory test or driver's theory test, is part of the motor vehicle driver's license assessment. After the implementation of the Ministry of Public Security's Order No. 123, the Subject 3 exam was divided into two parts: the road test and an additional safety and civics knowledge test, commonly referred to as "Subject 4," which assesses "driving ethics." Since this test is conducted after Subject 3, it is commonly called the Subject 4 exam. Officially, there is no such term as Subject 4. If you fail Subject 4, you do not need to retake the previously passed subjects (Subject 1, Subject 2, Subject 3). You can schedule a retake on your own, and no retake fee is required. There are no scheduling restrictions, but the driving skills test permit is valid for three years. If the applicant does not complete the exam within this period, the results of any passed subjects will be voided.
14
2
Share

What Causes Odor When Using the Car's External Air Circulation?

The reasons for odor when using the car's external air circulation include mold or foreign objects in the air intake ducts or a dirty car air filter. Below is an introduction to issues related to the car's external air circulation: 1. Mold or foreign objects in the air intake ducts: The car's air conditioning ducts can easily accumulate dust, which over time can produce odors, necessitating cleaning of the car's air conditioning system. 2. Car air filter: The car air filter is the most easily overlooked component. It requires regular cleaning and replacement. However, a dirty car air filter not only fails to filter out dirty air but also causes secondary pollution to the fresh air entering the car. Therefore, to completely eliminate odors inside the car, it is essential to address the source of the problem.
1
3
Share

How Long Does It Take to Transfer Vehicle Records?

Vehicle record transfer approval takes three days. According to Article 13, Paragraph 1 of the "Motor Vehicle Registration Regulations": "The vehicle management office shall, within three days from the date of acceptance, annotate the changes on the motor vehicle registration certificate, reclaim the license plate and driving license, issue a temporary driving license plate valid for thirty days, and hand over the motor vehicle records to the motor vehicle owner." Therefore, the approval period for record transfer is three days, calculated from the date of acceptance by the vehicle management office. Proof and certificate of motor vehicle ownership transfer. Within three days from the date of acceptance, the vehicle management office shall annotate the changes on the motor vehicle registration certificate, reclaim the license plate and driving license, issue a temporary license plate valid for 30 days, and hand over the motor vehicle records to the motor vehicle owner. The motor vehicle owner shall apply for the motor vehicle transfer at the local vehicle management office within the validity period of the temporary driving license plate. It takes five working days to complete all the procedures for vehicle relocation and record transfer. Precautions: All vehicle violations must be handled; Before relocating the vehicle, it is best to consult the local vehicle management office to see if they can accept it, i.e., whether the vehicle's emission standards meet local standards; The temporary license plate is valid for 15 days, and the vehicle must be registered and licensed in the relocation area within 15 days.
16
3
Share

What Could Be the Reasons for a Car Not Starting?

There are primarily three reasons why a car may not start: fuel system issues, electrical system issues, and mechanical problems. Fuel system issues include an empty fuel tank or clogged fuel lines. Electrical system issues may involve a dead battery. Mechanical problems can include engine carbon buildup, insufficient spark plug ignition energy, or a faulty starter motor. Below is a more detailed analysis: Cause Analysis: 1. When a car fails to start, pay attention to the condition of the battery. If there is an issue, it should be replaced promptly. Most vehicle batteries have a normal lifespan of about 2 to 3 years, especially disposable maintenance-free batteries, which tend to have a relatively fixed lifespan. During maintenance, check the battery carefully. If the voltage is low or you notice that the ignition is not as quick or powerful as usual, extra attention is needed. 2. If the car is low on gasoline, it may not start because there isn't enough fuel to sustain operation. In such cases, refuel promptly. Additionally, poor-quality gasoline can also prevent the car from starting, so it's important to choose high-quality gasoline from reliable gas stations. Engine carbon buildup is another common issue. When carbon deposits accumulate enough to block the air outlet, the car may not start. To determine if throttle carbon buildup is the cause, observe whether the car starts without pressing the accelerator. If it doesn't start without pressing the accelerator but does when you press it, this indicates throttle carbon buildup.
2
0
Share

Which consumes more fuel, L or T in cars?

Under the same engine displacement, cars with T engines consume more fuel than those with L engines. Here is some extended information about car engines: 1. Models with the letter T: Vehicles with the letter T are turbocharged models. These models have strong power, and due to the completeness of fuel combustion, the pollutants emitted from the vehicle's exhaust are relatively reduced. However, the cost of purchasing, maintaining, and repairing such models is higher. 2. Models with the letter L: Vehicles with the letter L are naturally aspirated models. While the power of these models during normal driving may not match that of turbocharged models, they offer smoother and more comfortable performance, along with greater durability.
16
0
Share

What are the introductions of various models of LIQUI MOLY engine oil?

Here are the specific introductions of LIQUI MOLY engine oil models: 1. High-Tech Synthetic Series: High-tech full synthetic engine oil, type is full synthetic oil, grade is SM, specification is 5W-40. It has excellent anti-wear performance, very stable performance at high temperatures, almost unaffected by temperature, and can maintain lubrication performance at extremely low temperatures. Suitable for multi-valve, large-displacement naturally aspirated engines or turbocharged engines. Designated original oil for Mercedes-Benz, BMW, Porsche, and Volkswagen. 2. Top Tec 4100: Top Tec 4100 engine oil, type is full synthetic oil, grade is SM, specification is 5W-40. Low-viscosity oil with excellent low-temperature performance, outstanding anti-wear performance, and fuel-saving. Suitable for most naturally aspirated engines and turbocharged engine models. Recommended for German cars. 3. Top Tec 4200: Top Tec 4200 engine oil, type is full synthetic oil, grade is SM, specification is 5W-30. Features all-weather oil, excellent anti-wear performance, outstanding high-temperature oxidation resistance, longer oil change intervals, officially claimed to reach 50,000 kilometers. Especially suitable for Volkswagen and Mercedes-Benz brand models. 4. HC7 Low Friction Series: Thor HC7 Low Friction Series, type is full synthetic oil, grade is SM, specification is 5W-40. Pursues lower fuel consumption performance, special formula reduces engine friction to an extremely low level, effectively extending engine life. Suitable for most car models.
13
4
Share
Trending Ranking
What Causes the Ticking Sound When Accelerating but Not at Idle?
What happens if the parallel parking distance is greater than 30cm but less than 50cm?
What to do if the Volkswagen Phaeton W12 misfires and shakes?
4
What are the differences between the Volkswagen Phideon and Volkswagen Phaeton?
5
Can Brake Lights That Flash Three Times Pass the Annual Inspection?
6
Under what circumstances is it appropriate to lightly press the brake pedal repeatedly?
7
How can the rear seat hump in Volkswagen be improved?
8
Should the turn signal remain on when pulling over to park?
9
Is the MG3 Automatic Transmission Semi-Automatic?
10
How to remotely start a Mercedes-Benz car?
More Forum Discussions

What is the solution for the Mazda6's lack of power and sluggish acceleration?

8
5
2

Does a car need a new battery if it won't start due to a dead battery?

9
2
2

How often is the Motorcycle D License reviewed?

12
5
2

How many points will be deducted for reversing at a wrong turn in a regular intersection?

11
2
1
About Us
Terms of Use
Privacy Policy
Help
Contact Us
FAQ
Cookie
Cookie Policy
Cookie Settings
© 2025 Servanan International Pte. Ltd.