What Causes Vehicle Body Shaking at Low Speeds?

[LeIsabela]

The reasons for vehicle body shaking at low speeds are: 1. Throttle blockage, carbon buildup, or abnormal opening; 2. Carbon buildup or blockage in the fuel injector; 3. Spark plug burning or damage; 4. Use of low-quality gasoline, leading to fuel pump blockage; 5. Incomplete combustion of the air-fuel mixture in the cylinder. The methods to address vehicle body shaking at low speeds are: 1. Read fault codes or data streams to eliminate sensor faults; 2. Check if the exhaust gas recirculation (EGR) valve has issues; 3. Inspect spark plugs, high-voltage wires, ignition coils, fuel injectors, timing marks, fuel pump pressure, and cylinder pressure; 4. Check if the idle speed control motor has problems, and clean the throttle and idle speed control motor.