Browse

Property For Sale Property For Rent

Used Cars Others

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 Others Pet Supplies Sporting Goods Ticket Toys Games Transportation

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

Can Water Enter the Transmission When Driving Through Water?

2 Answers

SanDante

07/29/25 10:45am

After driving through water, the transmission, differential, or front/rear axles and differential may take in water. Generally, transmission water ingress is mainly caused by the following two situations: Water level exceeds two-thirds of the wheel: If the water level surpasses two-thirds of the wheel, the probability of water entering the transmission is around 80% to 90%. If the water has reached the dashboard level, the transmission is 100% flooded. Water splash during oncoming traffic: When encountering oncoming vehicles, excessive road water can lead to water entering the transmission. Once water enters the transmission, the performance of the transmission fluid will be affected. The performance of the transmission fluid will also degrade, causing the clutch plates to slip.

Was this review help?

14

5

Share

DelEdward

08/13/25 3:48pm

When driving through water, it is indeed possible for water to enter the transmission. Let me explain. Transmissions typically have a vent hole designed to regulate pressure changes. However, if the water level rises above the wheel hubs, the high water pressure can easily force water back into the transmission. This is especially true when driving through standing water after heavy rain—if the water reaches below the hood, the transmission vent becomes a direct entry point. Automatic transmissions are more prone to water ingress than manual ones because they require higher sealing standards. Once water enters, it mixes with the transmission fluid, leading to lubrication failure, component rust, and even complete damage. I think many car enthusiasts overlook this issue, focusing only on the risk of engine water ingress, unaware that transmission repairs can be just as costly. Prevention is simple: avoid driving through deep water, generally keeping the water level below half the height of the wheels. After driving through water, promptly check and change the fluid, or visit a professional shop to test for water residue with specialized equipment. Early intervention can save significant repair costs.

Was this review help?

10

0

Share

Expand All

More Forum Discussions

Where to Purchase Compulsory Traffic Accident Liability Insurance for Motorcycles?

Compulsory Traffic Accident Liability Insurance for motorcycles can be purchased from property insurance companies that offer this type of insurance. What is Compulsory Traffic Accident Liability Insurance: Compulsory Traffic Accident Liability Insurance for motor vehicles is a mandatory liability insurance provided by insurance companies. It covers compensation for personal injuries, fatalities, and property losses (excluding the driver and passengers of the insured vehicle) caused by road traffic accidents involving the insured vehicle, within the specified liability limits. This insurance is China's first mandatory insurance system implemented under national law, with premiums uniformly regulated by the state. The primary factor affecting the price of this insurance is the 'number of vehicle seats.' Types of Motorcycle Insurance: In addition to the mandatory Compulsory Traffic Accident Liability Insurance, motorcycle owners can also opt for various commercial insurance policies as needed, such as Motorcycle Damage Insurance, Motorcycle Third-Party Liability Insurance, Motorcycle Passenger Liability Insurance, and Motorcycle Scratch Insurance. Among these, Motorcycle Damage Insurance and Motorcycle Third-Party Liability Insurance are highly recommended for all motorcycle owners.

Do Passengers in the Back Seat Need to Wear Seat Belts?

Passengers in the back seat should also wear seat belts. Here is relevant information about wearing seat belts: 1. Reasons why passengers in the back seat should wear seat belts: Data from the National Highway Traffic Safety Administration (NHTSA) shows that seat belts have saved as many as 13,941 lives in accidents. However, among the annual fatalities in car crashes, half of the victims still perish due to not wearing seat belts. In China, the probability of drivers using seat belts is less than 45%; for front-seat passengers, it is less than 17%; and for rear-seat passengers, it is less than 3%. If rear-seat passengers do not wear seat belts, during an accident, they may not only collide with the front seat backs but also hit the roof, door panels, or windows, leading to injuries. 2. The importance of seat belts: Seat belts are the lifelines of a car, providing protection for both drivers and passengers. When a car is traveling at high speed and experiences a collision or requires emergency braking, the enormous inertial force generated can cause the driver and passengers inside to collide with the steering wheel, windshield, or seat backs, resulting in severe injuries.

Why Are Three-Way Catalytic Converters So Expensive?

The high cost of three-way catalytic converters is due to the presence of precious metals in their honeycomb-structured substrate. Below are specific details about common failures of three-way catalytic converters: 1. Overheating: At normal temperatures, three-way catalytic converters do not possess catalytic capabilities. Their catalysts must be heated to a certain temperature to gain oxidation or reduction abilities. Typically, the light-off temperature for catalytic converters ranges between 250–350°C, while their normal operating temperature is generally between 350–700°C. During operation, higher-quality catalytic converters generate more heat, and oxidation temperatures also rise. When temperatures exceed 850–1000°C, the catalyst coating inside may detach, and the substrate can crack. 2. Chronic Poisoning: The catalysts are highly sensitive to elements such as sulfur, lead, phosphorus, and zinc. Sulfur and lead come from gasoline, while phosphorus and zinc originate from lubricating oil. These four substances, along with their oxide particles formed during engine combustion, easily adhere to the catalyst's surface, preventing contact with exhaust gases and thereby losing catalytic effectiveness—a phenomenon known as 'poisoning.' 3. Carbon Buildup: When a vehicle operates under low-temperature conditions for extended periods, the three-way catalytic converter cannot activate. Carbon deposits from the engine exhaust will accumulate on the catalyst's surface, blocking contact with CO and HC. Over time, this leads to clogged substrate pores, reducing conversion efficiency.

How is the mileage calculated?

The principle is actually quite simple: it involves multiplying the tire's rotation count by its circumference. Since the tire's circumference is fixed, knowing the wheel's rotation count allows calculation of the vehicle's mileage and speed. For example, if a tire has a circumference of 1 meter and rotates 1000 times per minute, the car would travel 1000 meters per minute, or 36 kilometers per hour. The main difference between various types of odometers lies in how they obtain the wheel rotation signal. Most vehicles use electronic odometers. The dashboard essentially functions as a display screen, with parameters controlled by the vehicle's computer. The speed sensor transmits the wheel rotation signal to the computer, which calculates a value based on pre-stored programs and displays it on the dashboard, continuously updating as the car moves. There are two methods for the speed sensor to obtain signals: one is from the transmission output shaft, and the other utilizes the ABS wheel speed sensor's signal. Most vehicle dashboards display two types of mileage: one is the total mileage the car has traveled, and the other is a measurable mileage that can be manually reset by the car owner. Next to most digital displays, there's a small button (cylindrical in shape) that can be held down to reset the measurable mileage.

Can unopened expired antifreeze still be used normally?

Unopened expired antifreeze cannot be used because the active ingredients in antifreeze will precipitate after expiration, causing the liquid to lose its antifreeze capability. At low temperatures, it will freeze and potentially damage engine components, radiators, and other cooling system parts. Antifreeze replacement cycle: Vehicle antifreeze generally needs to be replaced every 2 years or 40,000 kilometers. This is just a reference interval. For commercial vehicles with higher mileage, the replacement cycle should be shorter. Since driving conditions vary for each vehicle, the replacement should be based on actual usage. Check the antifreeze's condition—if it is insufficient, replenish it promptly. If suspended particles, sediment, or signs of deterioration or discoloration are observed, replace the antifreeze immediately and flush the system. Antifreeze composition: The main components of antifreeze are: 50% purified water, 40% methanol, and 10% other substances. Types of antifreeze: Antifreeze is generally categorized into three types: ethanol-water, glycerin-water, and ethylene glycol-water.

Is it common for car doors to get paint chipped when opened?

Is it common for car doors to get paint chipped when opened. Precautions when opening doors: Before opening the car door, first observe the left and right rearview mirrors to confirm whether there are vehicles approaching from behind. For rear passengers, it is also necessary to remind the driver to help check the rear situation and only open the door to get off after ensuring safety. Park in a safe place, close to the right side of the road, ensuring no vehicles can come from the right side. Cyclists and pedestrians passing by parked vehicles, especially those that have just stopped, should maintain a lateral distance from the vehicle to guard against sudden door openings. Car paint maintenance: Rinse promptly after rain. Rain stains on the car body will gradually shrink, increasing the concentration of acidic substances in the rainwater. If not rinsed off with clean water promptly, the stains will damage the paint over time. For some special, extremely corrosive marks, remove them promptly. Special cleaning agents must be used for this purpose; avoid using blades to scrape or gasoline to remove them to prevent damage to the paint. Before, during, and after vehicle use, promptly remove dust from the car body to minimize the adsorption of dust by static electricity on the body.

Trending Ranking

Will the car stall when in second gear without pressing the accelerator?

Does the Teramont have a 5-seater version?

Where is the cabin air filter located in the Chery Fengyun 2?

Do 4WD Vehicles Need Winter Tires in Northeast China?

How many hours of driving on the highway is considered fatigued driving?

How Long Does a Full Car Paint Refurbishment Take?

What is the penalty for driving at 70 km/h on a highway ramp with a speed limit of 40 km/h?

Is it safe to drive with snow on the car?

Must Snow Tires Be of the Same Model?

What causes the handbrake light to keep flashing?

More Forum Discussions

What are the differences between BMW R1250ADV and GS?

What are the uses of motor vehicle safety devices?

What is the reason for the windshield washer fluid not spraying but the wipers still working?

What is the setting method for the one-touch window lift with remote control on the new Lavida?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.