What Causes the Engine to Stall While Driving but Restart Normally?

1 Answers
SanAngelina
07/29/25 11:48pm
If the engine can be restarted after stalling, it is mostly due to fuel system or electrical component issues. In such cases, it is advisable to drive cautiously and, for safety reasons, immediately visit a nearby repair shop for a thorough inspection to completely eliminate potential faults. Below is additional information: 1. Circuit Malfunction: This could occur due to low-voltage power failure during driving, causing the engine to stall. In this situation, focus on checking the ignition system, engine switch, and fuse box. 2. Electrical Component Failure: This issue is usually related to the ignition coil, capacitor, or electronic ignition module. The engine may start initially, stall after a while, restart, and then stall again. 3. Fuel System Malfunction: Possible causes include a damaged fuel pump, ruptured fuel line, clogged carburetor fuel inlet, or an empty fuel tank. In such cases, the car may restart but with difficulty. 4. Sensor Malfunction: Faults in sensors such as the throttle position sensor, air flow sensor, intake pressure sensor, crankshaft position sensor, or camshaft position sensor can also lead to stalling issues.
Was this review help?
1
0
Share
More Forum Discussions

What is the speed limit on the Baomao Expressway?

At the 1051 km 923 m mark of the Baomao Expressway, the speed limit is 100 km/h for small vehicles and 80 km/h for medium and large vehicles. The Baomao Expressway is located in Hanbin District, Ankang City, Shaanxi Province, north of the Cigou Exit (Cigou Toll Station). Maximum speed: Expressways should indicate the driving speed of lanes. The maximum speed should not exceed 120 km/h, and the minimum speed should not be lower than 60 km/h. On expressways, the maximum speed for small passenger cars should not exceed 120 km/h, other motor vehicles should not exceed 100 km/h, and motorcycles should not exceed 80 km/h. Minimum speed: According to the "Regulations for the Implementation of the Road Traffic Safety Law," if there are 2 lanes in the same direction, the minimum speed for the left lane is 100 km/h; if there are 3 or more lanes in the same direction, the minimum speed for the leftmost lane is 110 km/h, and the minimum speed for the middle lane is 90 km/h. If the speed indicated by the road speed limit signs is inconsistent with the above lane speed regulations, the speed indicated by the road speed limit signs should be followed.
20
4
Share

Why is the engine warning light on in a Ford Mondeo?

The engine warning light may illuminate due to the following 7 main reasons: Sensor malfunction: This includes sensors such as coolant temperature, crankshaft position, air flow, intake temperature, and oxygen sensors. When these sensors are damaged, have poor connections, or experience signal interruptions, the vehicle's ECU cannot accurately obtain engine data, triggering the warning light. Fuel/oil quality issues: Failure to use fuel and engine oil as specified by the manufacturer may cause engine wear, leading to the warning light activation. Poor fuel mixture combustion: Incomplete combustion can cause engine carbon buildup or knocking. When detected by oxygen sensors and reported to the ECU, the warning light will illuminate. Spark plug failure, ignition coil issues, fuel pump malfunction, or fuel line blockages can all contribute to poor combustion. Turbocharger problems: Issues with intake boost pipes or turbochargers (especially turbocharger damage) may trigger the warning light, often accompanied by oil leaks, excessive oil consumption, reduced power, metallic noises, or blue/black exhaust smoke. Intake system issues: Air intake problems may lead to engine pipe blockages, potentially causing the warning light to illuminate. A dirty air filter that hasn't been regularly cleaned can cause intake problems. Exhaust system faults: Exhaust issues (such as rear oxygen sensor failure, catalytic converter problems, or exhaust camshaft/bearing failures) may activate the warning light. The catalytic converter is particularly vulnerable to damage from leaded gasoline, improper lubricant additives, physical impacts, or fuel system malfunctions. Anti-theft system malfunction: If the electronic anti-theft system fails or doesn't properly communicate with the engine control unit, it may prevent normal engine operation and trigger the warning light. When the engine warning light illuminates, follow these steps: 1. First check if the engine is operating normally. If there's noticeable shaking, black smoke, or other abnormalities - especially if the light is red - do not restart the engine. 2. If the engine can start, turn it off for 5-10 minutes. Then without pressing the brake (or clutch for manual transmissions), activate the ignition to the ON position to initiate system self-check. Observe if the warning light turns off after 5-10 seconds. 3. If the light remains on, visit a service center immediately. Technicians can use diagnostic tools to read trouble codes and perform targeted repairs.
13
3
Share

What are the 5 Common Faults in Braking Systems?

The 5 common faults in braking systems are poor braking efficiency, brake failure, brake drag, braking deviation (unilateral), and excessive free travel of the brake pedal. The causes of poor braking efficiency in hydraulic braking systems can generally be determined based on the brake pedal travel (commonly referred to as height), the soft or hard sensation when stepping on the brake pedal, the stability after pressing the brake pedal, and the increase in pedal height during continuous braking in border areas. If brake failure occurs, stop immediately and inspect. First, observe whether there is any brake fluid leakage, such as at the dust boot of the master cylinder pushrod. If there is severe brake fluid leakage at the master cylinder pushrod dust boot, it is mostly caused by the master cylinder cup being flipped or severely damaged. If there is a large amount of brake fluid at the edge of the wheel brake drum, it indicates that the wheel cylinder cup is flipped or severely damaged. Brake fluid leakage in the pipelines is generally obvious. If there is no brake fluid leakage, check whether the brake fluid in the master cylinder reservoir is sufficient. If all or a single wheel still has braking function after releasing the brake pedal, it indicates brake drag. If brake drag occurs while driving and all wheel brake drums are overheated, it suggests a fault in the master cylinder. If a single brake drum is overheated, it indicates an issue with the wheel brake. If the fault is in the master cylinder, first check the free travel of the brake pedal. If there is no free travel, the gap between the master cylinder pushrod and the piston is usually too small or nonexistent. If the free travel is normal, remove the plug of the master cylinder reservoir, press the brake pedal, and observe the return flow. If there is no return flow, the return hole is blocked. If the return flow is slow, check whether the brake fluid is too dirty or too viscous. If the brake fluid is clean, the master cylinder cup and skirt may have expanded, or the return spring is too soft, so the master cylinder should be disassembled for inspection.
12
5
Share

Does a 6-year-old car need refrigerant replacement?

Generally not needed. There is no fixed time cycle for refrigerant (commonly known as "snow seed" in Chinese) replenishment or replacement in principle. Whether replacement or replenishment is required mainly depends on the air conditioning cooling performance. Here are extended details: Conditions for refrigerant replacement: The simplest way to evaluate cooling performance is to measure the air outlet temperature, which may vary slightly among different vehicle models. After excluding factors like heat dissipation issues or refrigerant leakage, refrigerant replacement can be considered. Additionally, after performing maintenance or replacing components in the air conditioning system, refrigerant replacement may be conducted to ensure optimal cooling performance.
5
5
Share

What is the fuel tank capacity of the Honda CR-V?

The fuel tank capacity of the Honda CR-V is 58 liters. The Honda CR-V is a classic SUV model produced by Dongfeng Honda Automobile Company. Its body dimensions are 4550mm in length, 1820mm in width, and 1685mm in height, with a wheelbase of 2620mm. The maximum speed is 182 kilometers per hour, and the drivetrain is front-wheel drive. The Honda CR-V is equipped with a 2.0-liter turbocharged engine, delivering a maximum power of 110 kW at 6500 rpm, a maximum horsepower of 193, and a maximum torque of 243 Nm. The drivetrain system features a dual-pump real-time four-wheel drive.
17
5
Share

What does maintenance window mean?

Maintenance window refers to a designated period during train operations when no trains are scheduled to run, allowing time for maintenance and construction work. Below are relevant details: Comprehensive maintenance window: To ensure operational safety, high-speed railway schedules typically allocate a 5~6 hour comprehensive maintenance window during nighttime for simultaneous maintenance of tracks, communication signals, and power supply equipment. Maintenance window unit: In electrified railway sections, the power supply outage unit serves as the maintenance window unit. One maintenance window unit comprises several basic maintenance window units. A basic maintenance window unit includes the main track in one direction within the starting station, the arrival and departure tracks on that side, and the section main track between two stations.
18
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.