What are the reasons why a car cannot accelerate?
2 Answers
The following are the reasons why a car cannot accelerate: Excessive carbon deposits in the car engine: Excessive carbon deposits in the throttle and engine, damage to the idle position sensor and air flow meter, leading to excessively high temperature in the combustion chamber and disrupting the normal operation of the engine. Blockage in the fuel system causing insufficient fuel supply: First, check whether the fuel filter is blocked, whether the fuel pump pressure is sufficient, and whether the fuel injector is clogged. Air entering the fuel system making the air-fuel mixture too lean: Gasoline vaporization and combustion require a certain temperature to proceed. When the car is cold, the engine runs unevenly, causing the air-fuel mixture to become too lean. Therefore, it is necessary to warm up the car before driving.
My previous car also had the issue of poor acceleration when refueling. At first, I thought I wasn't pressing the gas pedal hard enough, but later I found out it was actually due to severe carbon buildup in the engine, which caused incomplete combustion. There can be many reasons for sluggish acceleration, such as a clogged air filter restricting airflow and affecting the air-fuel mixture; or aging spark plugs reducing ignition efficiency, making the car struggle when climbing hills; if the fuel filter is clogged, poor fuel flow can also hinder performance. I remember when I took it to the repair shop, the mechanic warned that long-term neglect could damage the engine and suggested checking these small components every 10,000 kilometers. Using high-quality gasoline can also help prevent some issues. After the repairs, the car ran much smoother and felt as powerful as a new one. Safe driving is always the top priority.
