Reasons for Severe Car Shaking and Lack of Acceleration Power
2 Answers
Severe car shaking and lack of acceleration power are generally caused by excessive carbon buildup in the throttle body, leading to restricted air intake. As carbon deposits increase, fuel passages become clogged, engine performance declines, and fuel consumption rises, often accompanied by a series of complications. Below are methods for removing carbon deposits: manually cleaning internal carbon buildup or using gasoline additives to improve combustion and clean carbon deposits. Comparatively, manual cleaning requires disassembling the engine, which is a complex process with high labor costs and potential harm to the engine. In contrast, fuel additives are simpler, more convenient, relatively cheaper, and provide thorough cleaning.
I've been driving on the road for decades and have seen many cases of this kind of shaking and lack of acceleration. The most common issue is with the ignition system, such as aging spark plugs or failure to ignite, and a faulty ignition coil can also cause cylinder misfires, leading to uneven engine operation and shaking with poor acceleration. The fuel system is also a major factor; clogged fuel injectors, insufficient fuel pump pressure, or dirty fuel lines can cause poor gasoline supply, naturally making the car sluggish. Then there's the intake system—if the air filter is too dirty and clogged, air can't get in, disrupting the air-fuel mixture ratio, and the engine will tremble as if it can't breathe. On the mechanical side, aging or loose engine mounts can directly transmit vibrations to the car body. I suggest you first check the condition of the spark plugs and whether the air filter needs replacement. If that doesn't help, get professional repairs as soon as possible—don't risk driving on the highway, as it could easily lead to an accident.
