Does Idling with AC On Consume More Fuel?

1 Answers
DiStella
07/30/25 9:47am
Idling with the AC on does consume more fuel. Here is some related information about 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 changing the throttle 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 is in an idle state. 2. Reasons for unstable idling: Direct causes refer to mechanical parts being dirty, worn, or improperly installed, leading to changes in cylinder power, which results in an imbalance in power among the cylinders, causing unstable idling. 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 the cylinders and causing unstable idling.
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