What Causes Throttle Vibration When Driving in the Rain?

[McKai]

Fuel system issues are generally caused by fuel line blockages, leading to inadequate fuel supply, which manifests as engine vibration, unstable idling, or stalling while driving. Additionally, fuel pump malfunctions can also result in engine vibration. To diagnose fuel pump problems, disconnect the fuel line and check the flow rate and volume of fuel. Throttle vibration is related to gasoline, and the causes of vibration are as follows: 1. If the engine vibrates after starting, it may be due to worn engine mounts, excessive carbon buildup in the throttle body, or a malfunctioning cylinder. 2. The engine mounts, which connect the engine to the frame, help dampen vibrations, preventing them from being directly transmitted to the vehicle body.