What is the idle speed of an automatic transmission car?
1 Answers
Automatic transmission idle speed is around 1200 to 1500 RPM when starting a cold engine; when the water temperature is normal, the idle speed usually maintains between 800 to 900 RPM. If driving in D gear without pressing the accelerator, the speed is approximately 5 to 10 km/h. The idle speed of a car may vary depending on different engines and models, but the idle range is generally similar, normally between 800 to 900 RPM. When starting a cold engine, the car's idle speed will be higher because engine wear is more severe when working at low temperatures. When the engine computer detects that the engine temperature is relatively low, to avoid wear, the vehicle computer will increase the idle speed to allow the engine to reach operating temperature quickly and adjust to normal working conditions.