Browse

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Pet Supplies Sporting Goods Ticket Toys Games Transportation Others

Used Cars New Cars Others

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

What is the situation with the dripping sound under the car after parking?

2 Answers

LaRiver

07/29/25 7:54am

Here are the reasons for the dripping sound under the car after parking: 1. The dripping sound under the car after parking is not actually dripping water. The sound comes from the three-way catalytic converter, which is a normal phenomenon. It is the sound of the three-way catalytic material expanding and contracting with heat, so there is no need to worry too much. 2. When the car is running, the temperature of the car parts is very high, and they will expand slightly due to heat. After turning off the engine, the heat source is lost, so the temperature will drop due to the influence of the ambient temperature. Additional information: The working principle of the three-way catalytic converter is that when high-temperature exhaust gas passes through the purification device, the purifying agent in the three-way catalytic converter will enhance the activity of the three gases CO, HC, and NOx, promoting them to undergo certain oxidation and reduction chemical reactions to turn into harmless gases.

Was this review help?

20

2

Share

McBriella

08/12/25 11:08am

A dripping sound under the car after parking is something I've encountered several times before, and it's actually quite common. Most of the time, it's caused by normal condensation from the air conditioning. When the AC runs, it absorbs moisture from the cabin, and after parking, the moisture condenses into water droplets that drain from the chassis, producing a ticking sound. This water is usually clear and colorless, indicating no issue. However, it could also be a cooling system leak—such as from a poorly sealed radiator or hose—where coolant slowly drips out, possibly appearing slightly pink or green, which requires attention. Another possibility is the exhaust system: moisture accumulates in the exhaust pipe while the engine runs and drips out after parking. Pay attention to the location when driving: dripping near the front often points to the AC, while the rear suggests exhaust or a leak. If there's no unusual odor and the fluid looks normal, it’s generally fine. But if the dripping persists or has a sweet smell, it’s best to visit a repair shop promptly for an engine check. Don’t overlook this small issue—proper car maintenance saves both hassle and money.

Was this review help?

10

0

Share

Expand All

More Forum Discussions

What are the reasons for the obvious decrease in coolant without leakage?

The reasons for the obvious decrease in coolant without leakage include damage to the cylinder head gasket; poor flatness of the joint surface between the cylinder head and cylinder block; warping; and loose cylinder head fastening bolts, which can allow high-temperature and high-pressure gases from the cylinder to enter the cooling system, causing the coolant to be consumed too quickly. How to determine if there is a lack of coolant: Observe the coolant warning light on the dashboard. If it lights up, it is likely due to a lack of coolant, although it could also be caused by excessively high temperatures in the cylinder. Check the coolant reservoir. If the liquid level is below the minimum mark (MIN), do not continue driving and add coolant promptly. Check the water level scale on the coolant bottle. The normal coolant level should be between the maximum and minimum marks. Whether there is a lack of coolant depends on the scale. If the coolant is below the minimum mark, it indicates a lack of coolant.

What Causes the Vibration in D Gear but Not in N Gear?

When in D gear, the transmission and engine are interconnected, which makes the vibration more noticeable. In N gear, the transmission and engine are disconnected, preventing engine vibrations from being transmitted to the transmission, hence the reduced vibration. Additionally, it's necessary to check if the transmission fluid needs replacement, as aged fluid can increase the likelihood of resonance noise. Common causes of D gear vibration include excessive carbon buildup, fuel system malfunctions, and aging engine mounts. Causes and Solutions for D Gear Vibration: Excessive Carbon Buildup: Severe carbon deposits in the engine cylinders can clog spark plugs and valves, leading to vibrations at idle. If acceleration performance declines and vibrations persist, the engine cylinders should be cleaned. Fuel System Malfunction: Unstable fuel pressure can cause inconsistent air-fuel mixture concentrations, resulting in vehicle vibration and unstable idle. Consider replacing the fuel filter and checking the fuel pressure before the filter. If issues persist, the fuel pump may be faulty. Aging Engine Mounts: If engine vibrations worsen without a loss of power, the engine mounts may need replacement. Solutions: Clean the engine cylinders; replace engine mounts; inspect spark plugs; check the fuel system.

How to Remove Car Odors?

If there is an odor inside the car, you can use the fragrance of fruits to mask and absorb it. Fruits like lemons, pineapples, and pomelo peels have strong fragrances that can effectively absorb car odors and provide a better driving environment. The ventilation method is a more direct way to eliminate odors inside the car, especially after purchasing a new car. Opening the windows to ventilate can help dissipate the odors. It's also good to develop the habit of moderately opening the windows while driving, which keeps the car environment fresh and benefits your health. Placing activated charcoal is another common method. Many car owners place activated charcoal or buy bamboo charcoal bags to remove odors. Activated charcoal has excellent adsorption properties, capable of absorbing various gaseous, colloidal, and particulate pollutants in the air, making it highly effective for purifying the car interior. Air purifiers are also a highly effective way to eliminate odors while providing a better driving environment. They can filter out fine particles in the air, remove harmful gases like formaldehyde and benzene, and even sterilize the air. This method is favored by many car owners today. However, when purchasing an air purifier, be cautious as there are many product varieties with varying quality levels.

Does the Chrysler 300c Belong to the Mid-Size Luxury Sedan Category?

The Chrysler 300c is classified as a mid-size luxury sedan, meeting the standards for both body dimensions and power output typical of this vehicle category. Below are the specifications of this model and the criteria for vehicle classification: Dimensions and Powertrain of the Chrysler 300C: The body dimensions measure 5066mm in length, 1902mm in width, and 1488mm in height, with a wheelbase of 3052mm. It is equipped with a 3.6L engine paired with an 8-speed automatic transmission. Vehicle Classification Criteria: Vehicle categories are typically determined based on wheelbase and engine displacement. For instance, mid-size luxury sedans generally have a wheelbase ranging from approximately 2800mm to 3100mm, a body length between 4800mm and 5200mm, and an engine displacement exceeding 2.4L.

What is the fuel consumption per kilometer for the Great Wall Pao?

Great Wall Pao consumes 0.079-0.099L of fuel per kilometer, with a fuel consumption of 7.9-9.9L per 100 kilometers. Methods to reduce fuel consumption: Gear selection and shifting actions significantly impact fuel consumption. When starting, choose the appropriate gear based on load and road conditions. While driving, downshift promptly when feeling a lack of power instead of merely pressing the accelerator to compensate, as blindly stepping on the accelerator will increase fuel consumption. When shifting gears, be swift and precise with your movements. This can shorten the driving distance during gear shifts, achieving the goal of fuel efficiency. Great Wall Pao model configuration: In terms of power, the entire lineup is equipped with a 2.0T inline 4-cylinder turbocharged engine, paired with an 8-speed automatic manual transmission, delivering a maximum power of 140KW, maximum horsepower of 190PS, and maximum torque of 360N.m. The maximum power speed ranges from 4000-5500 rpm, and the maximum torque speed ranges from 1800-3600 rpm. All fuel supply methods are direct injection into the cylinder.

What grade of gasoline should be used for the new Magotan?

The new Magotan generally uses 95-octane gasoline. Gasoline: Gasoline is a volatile, flammable hydrocarbon mixture liquid distilled and cracked from petroleum, used as fuel. It appears as a transparent liquid, is flammable, with a distillation range of 30 to 220 degrees. Its main components are C5 to C12 aliphatic hydrocarbons and naphthenes, along with a certain amount of aromatic hydrocarbons. Gasoline has a high octane rating (anti-knock combustion performance) and is classified into different grades such as 89, 90, 92, 93, 95, 97, and 98 based on octane levels. 95-octane gasoline: 95-octane gasoline consists of 95% isooctane and 5% n-heptane. High-compression engines should use high-octane gasoline; using low-octane gasoline in high-compression engines can cause abnormal combustion, leading to knocking, increased fuel consumption, and reduced driving power. Of course, high-compression engines can also use lower-grade gasoline, but one should not blindly choose gasoline based on compression ratio alone. Instead, follow the manufacturer's recommendations for refueling.

Trending Ranking

Is It Dangerous to Start a Motorcycle That Is Leaking Gasoline?

How to Check the Engine Oil Level in a Car?

What Are the Reasons for Rapid Consumption of Car Coolant?

What is the length of the new Magotan?

How to Start the Golf When the Key Fob Battery Dies?

Does BMW Have Adaptive Cruise Control?

Will a damaged cylinder head gasket on the Volkswagen Magotan B7 cause engine oil leakage?

How to Tell When Engine Oil Needs to Be Changed

Where are the sunroof drainage outlets located on the Mistra?

Is the body material of the Volvo S90 made of aluminum or steel?

More Forum Discussions

How to Get the Insurance Policy When Purchasing Car Insurance Online?

How to Open the Front Hood of the E100?

What is the tire size of the Benelli BN 302?

What is the inspection cycle for motor vehicles?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.