What Causes Body Shaking When Lightly Pressing the Accelerator?
2 Answers
Reasons for body shaking when lightly pressing the accelerator: Fuel system issues: Most fuel system problems are caused by clogged fuel lines, leading to poor fuel supply. Symptoms include engine vibration, unstable idling, and stalling while driving. Additionally, fuel pump failure may also cause engine vibration. To diagnose fuel pump issues, disconnect the fuel line and check the flow rate and volume. Electrical issues: Check if the ignition timing is correct, as most ignition problems are related to timing. Inspect whether the spark plugs are worn out, if the gaps are similar, and if the gaps have changed. Furthermore, malfunctioning distributors may also cause engine vibration. Mechanical reasons: Check the engine's operating condition for any abnormal noises, such as valve sounds. Inspect the belt's working condition to see if it is loose.
I noticed the issue of slight throttle input causing body vibration, which is usually caused by the engine's ignition system. For example, aging spark plugs or faulty ignition coils can lead to unstable combustion, especially during acceleration at low RPMs, resulting in noticeable shaking. Additionally, excessive carbon buildup may clog the intake valves, causing delayed throttle response and worsening vibrations. A friend of mine experienced this, and it turned out the spark plugs needed replacement. If the shaking occurs only at specific speeds, it might be related to the fuel injection system—dirty fuel injectors or insufficient fuel pump pressure could be the culprits. It's advisable to visit a professional repair shop for a diagnostic scan as soon as possible to prevent minor issues from escalating into major engine repairs. Regular maintenance, such as cleaning the throttle body and inspecting spark plugs, can effectively prevent such problems.
