What Causes Throttle Noise?

[Rodrigues]

Throttle noise is caused by a malfunction in the throttle body. Here is an introduction to the throttle body: 1. Overview: The throttle body is a controllable valve that regulates air intake into the engine. After entering the intake manifold, the air mixes with gasoline to form a combustible mixture, which then ignites to generate power. 2. Maintenance Methods: (1) Gas Release: Engine oil tends to volatilize under heat 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 piston ring gaps. Therefore, a passage must be provided to release this gas; otherwise, positive pressure will form in the oil pan. (2) Negative Pressure Extraction: The crankcase ventilation tube connects to the throttle body partly due to environmental requirements and partly to utilize the intake's negative pressure to extract gas from the crankcase. (3) Cleaning Frequency: How quickly the throttle body gets dirty depends on factors such as engine operating temperature and driving habits.