What Causes Engine Shaking at Low Speeds but Normal Operation at High Speeds?
1 Answers
Engine shaking at low speeds but normal operation at high speeds is mainly due to carbon buildup in the throttle body. Here is an introduction to the throttle body: 1. Introduction: The throttle body is a controllable valve that regulates the amount of air entering the engine. After entering the intake pipe, the air mixes with gasoline to form a combustible mixture, which then burns to generate power. 2. Maintenance Methods: (1) Release of Gases: Engine oil tends to volatilize when heated during use. The longer the usage period and the higher the temperature, the stronger the volatilization. Additionally, some compressed gas from the cylinder will inevitably squeeze into the crankcase through the gaps in the piston rings. Therefore, there must be a passage to release these gases; otherwise, positive pressure will form in the oil pan. (2) Negative Pressure Extraction: The reason the crankcase ventilation tube is connected to the throttle body is partly due to environmental requirements and partly to utilize the intake's negative pressure to extract gases from the crankcase. (3) Cleaning Frequency: How quickly the throttle body gets dirty depends on various factors, including the engine's operating temperature and driving habits.
