What Causes Occasional Idle Shaking?

[KatherineRose]

Severe engine carbon buildup, ignition system issues, unstable oil pressure, aging engine components, etc. Below are three main causes of idle shaking: 1. Severe engine carbon buildup - This leads to poor engine performance, increased fuel consumption, and even starting difficulties, potentially causing significant long-term damage to the vehicle. 2. Ignition system problems - These cause unstable engine operation, resulting in deteriorated acceleration performance, reduced power output, and poorer fuel economy. 3. Unstable oil pressure - Multiple factors can cause this, including insufficient engine oil, dirty oil, thinned oil, oil pipe leaks, oil pump failure, or excessive wear of pump components.