Will the idle speed increase when the air conditioning is turned on?

[MarianaDella]

When the engine is idling while warming up, the sound may fluctuate, and turning on the air conditioning can cause the idle speed to increase. This is a normal behavior. Below is an introduction to car idling: 1. The function of car idling: Idling is an operating condition of a car, referring to the engine running in neutral gear. The engine speed during idling is called the idle speed. The idle speed can be adjusted by modifying the throttle opening size, among other methods. Idling means the engine is "producing power without doing work." When the engine is running, if the accelerator pedal is completely released, the engine enters the idling state. 2. Reasons for unstable idle speed: Direct causes refer to mechanical parts being dirty, worn, or incorrectly installed, leading to changes in cylinder power and resulting in an imbalance of power among cylinders, causing unstable idle speed. Indirect causes refer to abnormalities in the engine's electronic control system, leading to poor combustion of the air-fuel mixture, making it difficult to balance the power among cylinders and causing unstable idle speed.