What Causes Sudden Loss of Power and Severe Shaking When Accelerating?

[DavidLynn]

Here are the specific reasons for sudden loss of power and severe shaking when accelerating: 1. Carbon buildup issues: Including cylinder carbon deposits, throttle carbon deposits, spark plug carbon deposits, intake carbon deposits, etc. When there is excessive carbon buildup inside the engine, the vehicle's ignition energy decreases, intake efficiency drops, ultimately leading to reduced engine power and idle power loss. 2. Fuel system: Adding incompatible fuel grades causing decreased vehicle output power and reduced performance; or due to blocked fuel tank vent holes, clogged fuel tank switch, fuel filter, or fuel lines between the tank and carburetor, which cannot meet the required fuel supply, resulting in overly lean air-fuel mixture and weak engine acceleration. 3. Intake system: If the air filter is not cleaned in time after prolonged use and becomes clogged, insufficient air volume will cause an overly rich combustible mixture, reducing engine power; for vehicles with turbochargers, failure of the turbocharging device will also lead to reduced engine power or weakness. 4. Engine overheating: Insufficient engine oil, insufficient engine coolant, or malfunctioning engine cooling system will increase engine load, leading to poor engine cooling. Engine overheating causes poor lubrication effects, increases mechanical wear, reduces engine power, and increases fuel consumption.