Why Does the Vehicle Shake When Continuously Accelerating?

[LaSamuel]

The reasons for vehicle shaking during continuous acceleration include fuel system issues, electrical circuit problems, and mechanical problems. Fuel System Issues: Fuel system issues are generally caused by fuel line blockages, leading to poor fuel supply, manifested as engine shaking, unstable idling, and stalling while driving; additionally, fuel pump failure can also cause engine shaking. To diagnose fuel pump issues, disconnect the fuel line and check the flow rate and volume of the fuel. Electrical Circuit Problems: Check if the ignition timing is accurate, as irregular ignition is usually a timing issue; inspect whether the spark plugs have aged, if the gaps are uniform, and if the gaps have changed; also, malfunctioning distributors can cause engine shaking. Mechanical Reasons: Check the engine's operating condition for any abnormal sounds, such as valve noises; inspect the belt's working condition to see if it is loose.