What Are the Causes of Truck Driver's Seat Vibration?

[OJoshua]

Truck driver's seat vibration is primarily caused by three factors. Below is a detailed explanation of these three causes and their corresponding solutions: 1. Severe Engine Carbon Deposits: The most common cause of vehicle vibration is a dirty throttle body or excessive carbon buildup in the fuel injectors. When the vehicle starts, gasoline adsorbed on the carbon deposits is drawn into the engine cylinders for combustion, causing the air-fuel mixture to fluctuate between lean and rich, resulting in idle vibration after a cold start. Solution: Clean the fuel system and check the idle air control valve for carbon buildup. 2. Ignition System Issues: One of the causes of vibration is poor performance of spark plugs, high-voltage wires, or ignition coils. Solution: Inspect the spark plugs for excessive carbon buildup and replace them if necessary. 3. Unstable Fuel Pressure: Abnormal fuel pump pressure or incorrect readings and poor performance of the intake pressure sensor can lead to vehicle vibration. Solution: Check the fuel pressure and replace components if necessary.