What causes a car to fail to start after passing through a water puddle?

1 Answers
AaliyahRose
07/30/25 4:53am
Car failing to start after passing through a water puddle is due to water entering the engine. After driving through water, never attempt to restart the engine. Immediately call for a tow truck and have the vehicle inspected at a repair shop. Starting the engine when water has entered can cause severe engine damage, and such damage is typically not covered by insurance. Effects of water exposure on a car: 1. Cars have numerous cavities that are extremely difficult to clean once water enters, leading to mold and rust over time. Examples include the inner door panels, air conditioning ducts, and structural cavities. Areas like the crankcase and differential also have vent holes. 2. Upholstery and soft furnishings soaked in dirty water: These can leave stubborn stains and, if not properly dried, may continue to grow mold. 3. Components like the four-wheel bearings and axle grease: Water exposure can quickly degrade their quality. 4. Electronic devices in the car: Systems such as the electronic parking brake, audio system, and various sensors can develop persistent issues if not repaired promptly after water exposure.
Was this review help?
2
0
Share
More Forum Discussions

Should the clutch be released gradually after shifting gears?

The speed of releasing the clutch is related to the driving conditions. Generally, when the vehicle is at low speed (such as starting or shifting from first to second gear), the clutch should be released slowly. When the vehicle reaches a certain speed (such as shifting from second to third gear or third to fourth gear), the clutch can be released quickly. Here is some additional information: 1. Clutch: The clutch is located in the flywheel housing between the engine and the transmission. The clutch assembly is fixed to the rear plane of the flywheel with screws, and the output shaft of the clutch is the input shaft of the transmission. During driving, the driver can press or release the clutch pedal as needed to temporarily disconnect or gradually engage the engine and transmission, thereby cutting off or transmitting the power from the engine to the transmission. 2. Precautions for shifting gears: Avoid looking down at the gear lever when shifting; Avoid driving in low gear for a long time; Avoid the vehicle deviating from the direction when shifting; Avoid shifting into reverse before the vehicle comes to a complete stop; Avoid skipping gears when shifting; Avoid shaking the gear lever back and forth after moving it to the neutral position.
8
5
Share

Does Driving with the Power Take-Off Engaged Damage the Vehicle?

Driving with the power take-off (PTO) engaged can damage the vehicle. The PTO is driven by the engine and mounted on it. If not disengaged, it may cause difficulty in shifting gears, resulting in a "clunking" sound during gear shifts. Forcing the gear shift could lead to PTO damage in mild cases or even transmission failure in severe cases. Below is additional information: 1. Power Take-Off (PTO): The PTO, short for Power-Take-Off, consists of one or more sets of transmission gears, also known as a power output unit. It is typically composed of a gearbox, clutch, and controller, connected to the low-range gears of the transmission or the output shaft of the auxiliary box to transfer power to external working devices. 2. Classification: Based on control methods, PTOs can be mechanically controlled, hydraulically controlled, pneumatically controlled, vacuum-source controlled, or electrically controlled, with pneumatic control being the most common. Depending on the power output configuration, they are generally categorized into side-mounted power take-offs, front-mounted power take-offs, rear-mounted power take-offs, and front-engine power take-offs.
5
3
Share

What gear is suitable for turning?

For small-displacement vehicles, due to their weaker torque, 2nd or 3rd gear is more suitable for regular turns. If the speed is higher, 3rd or even 4th gear can be used. The principle is to avoid stalling the engine by not decelerating too much. For large-displacement vehicles, given their strong torque, using 4th gear is generally fine. Turning precautions: 1. Intersection turns: Intersections often have heavy traffic, making accidents more likely. When turning at an intersection, always observe carefully. One essential action when turning is to use the turn signal, mainly to alert surrounding vehicles. Additionally, try to leave space for other vehicles to avoid blocking their path and causing traffic congestion. Always turn slowly and avoid hitting obstacles. 2. Slope turns: When turning on a slope, remember to honk the horn. Turning on a slope often involves gear limitations, and slopes are inherently harder to control. Honking can serve as an early warning to others in case of unexpected situations. Always reduce speed on slopes and maintain control to ensure safety.
11
3
Share

How to Clean Car Wheel Hubs?

Here are the methods for cleaning car wheel hubs: 1. Toilet cleaner: Its main component is hydrochloric acid, which has strong corrosive properties. Therefore, it needs to be diluted before use. The corrosiveness is very effective for removing stubborn stains, but it can also damage the paint protective layer of the wheel hubs. Hence, the amount used should be controlled, and after application, it should be rinsed thoroughly with clean water to avoid residue. 2. All-purpose cleaner: All-purpose cleaner is also a common household cleaning agent. Despite the same name, there are many different formulations for different types of stains, and even different brands have different formulations. However, one thing is certain: all-purpose cleaners are chemically synthesized reagents. Before purchasing, be sure to explain your intended use to the seller. If the all-purpose cleaner's formulation is not suitable, it may have poor cleaning performance or even corrode the wheel hubs. 3. Iron remover: Iron remover is the most effective and easiest to use among all cleaning products. Since many of the stains splashed onto the wheel hubs contain iron particles, the iron remover can dissolve them effectively. After spraying the remover and waiting a few minutes, rinse it off with clean water, and the wheel hubs will look as good as new.
19
1
Share

What does 'turning off the AC to protect the engine' mean?

It refers to the engine's high-temperature protection, which is a normal phenomenon. Precautions to take: 1. Avoid immediately opening the cap to add water when the engine overheats: After the water in the radiator boils, there is internal pressure. If the radiator cap is opened immediately, hot water may spray out, causing burns. Therefore, drivers should never open the cap to add water right after the engine overheats. 2. Avoid turning off the engine immediately after overheating: Some drivers think of turning off the engine immediately upon noticing overheating. However, the engine overheats because the water temperature in the radiator is too high. Turning off the engine at this point can cause components to remain in an expanded state with very small clearances, leading to soft metal parts falling off or even cylinder sticking. Thus, do not turn off the engine immediately after overheating; instead, keep it idling. If the car has already stalled, immediately use the crank to turn the engine to prevent cylinder sticking. 3. Avoid splashing cold water on the engine: When the engine temperature is too high, do not splash cold water on it. Some people forget to add coolant when starting the car and, upon noticing the high temperature, pour cold water on the engine block or cylinder head to cool it down. This can have severe consequences, such as causing the engine block to crack due to sudden cooling, leading to irreparable damage.
6
2
Share

Does Compulsory Traffic Insurance Cover Flooded Vehicles?

Compulsory traffic insurance does not cover flooded vehicles because it is designed to compensate third-party vehicles and individuals. Vehicle damage can only be claimed if you have purchased vehicle damage insurance. Compulsory traffic insurance is mandatory by the state, and it is required for vehicles to legally operate on the road. According to Article 95 of the Road Traffic Safety Law: If a motor vehicle driven on the road does not display an inspection compliance mark or insurance mark, or if the driver fails to carry the vehicle registration certificate or driving license, the traffic management department of the public security organ shall detain the vehicle, notify the party to provide the corresponding certificates or marks, or complete the necessary procedures, and may impose penalties in accordance with Article 90 of this Law (a warning or a fine ranging from 20 to 200 yuan). Compulsory Traffic Insurance for Vehicles: The full name of compulsory traffic insurance is "Compulsory Liability Insurance for Motor Vehicle Traffic Accidents." It is a mandatory liability insurance where the insurance company compensates for personal injuries, deaths, and property losses of victims (excluding vehicle occupants and the insured) caused by road traffic accidents involving the insured vehicle, within the liability limits. The premium is based on a nationally unified standard. However, the price of compulsory traffic insurance varies depending on the vehicle type, with the main influencing factor being the number of seats. Compared to the over 20 exemption clauses in commercial third-party liability insurance, compulsory traffic insurance covers a much broader range, including losses caused by intentional actions of the victim, property losses of the insured, related arbitration and litigation costs, and certain indirect losses from accidents. Moreover, regardless of whether the insured vehicle is at fault in an accident, compulsory traffic insurance will compensate within the liability limits, with no deductible or exemption. Introduction to Electronic Insurance Policies An electronic insurance policy refers to a digital policy issued by an insurance company using digital signature software and enterprise digital certificates that comply with the PKI system, bearing the electronic signature of the insurance company. An insurance policy, commonly referred to as a policy, is the official written proof of the insurance contract between the insurer and the insured. The policy must fully record the rights, obligations, and responsibilities of both parties to the insurance contract. The content recorded in the policy serves as the basis for both parties to fulfill the contract. The insurance policy is proof of the establishment of the insurance contract. Advantages of Electronic Insurance Policies: Saves paper resources, eliminating the need to print insurance proof marks; Time-saving and convenient, unrestricted by time or location, with information accessible online anytime, quickly and easily; Allows for reissuance or resending, eliminating concerns about loss. If a paper version is needed offline, it can be printed or mailed; Simplifies management, as electronic standardization makes it easier for insurance companies and traffic police departments to manage vehicle insurance information.
1
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.