What causes a car to fail to accelerate, jerk, and then stall?
3 Answers
Here is an analysis of the reasons why a car fails to accelerate, jerks, and then stalls: Transmission internal issues: This situation is generally caused by not changing the transmission oil for a long time. The oil in a manual transmission also needs regular replacement, typically every 60,000 kilometers. If the transmission is dirty internally, it can lead to oil pressure problems, resulting in jerking. In this case, replacing the transmission oil should resolve the issue. Fuel quality issues: This situation commonly occurs after refueling at a different gas station, mainly due to poor fuel quality, which causes incomplete combustion in the engine and affects power. Switching to higher-quality fuel should solve the problem.
You asked about the situation where the car can't accelerate and jerks before stalling. I've encountered a similar issue before. That time, while driving, pressing the gas pedal had no response, the car shook violently, and then it stalled. After inspection, it was found that the fuel pump had insufficient pressure, or the filter was clogged, preventing fuel delivery. Worn spark plugs or faulty ignition coils often cause abnormal ignition, leading to improper engine operation. A dirty throttle body with excessive carbon buildup can also affect air intake, making the car 'struggle to breathe.' This kind of problem is common during cold starts, especially in winter. Safety-wise, it's important to note that if the car stalls on the road, immediately turn on the hazard lights and pull over. Don't force it to keep driving to avoid engine damage or accidents. It's best to visit a professional repair shop—they have diagnostic tools to quickly pinpoint the issue. Regular oil changes and ignition system checks can effectively prevent such problems.
The car lacks power when accelerating, jerks, and then stalls. I know a bit about cars, and this could be due to a fuel system or ignition component failure. A faulty fuel pump failing to supply fuel is one of the key reasons, or clogged fuel injectors causing poor gasoline atomization. Worn spark plug gaps or aging ignition coils can lead to unstable ignition, causing severe engine shaking. A clogged air filter also affects the air-fuel mixture ratio, resulting in poor acceleration. Faulty sensors like the oxygen sensor can mislead the ECU's control. When this happens, the car may produce sputtering sounds or have flashing lights. I suggest checking simple things first, like whether the spark plugs are blackened and need replacement. If that doesn't help, using an OBD scanner to read fault codes can save time. Safety first—don't restart the car after stalling; tow it to a repair shop for a thorough inspection. Don't forget to clean the throttle body and replace the oil filter during maintenance.
