What is the appropriate idle speed for the Geely Binyue?
3 Answers
Normal idle speed is generally suitable between 700-900 RPM. Typically, it ranges from 700-800 RPM. If the speed is too low, the engine may vibrate easily, while higher speeds result in increased fuel consumption. As long as there is no vibration, design engineers prefer to keep the idle speed as low as possible for fuel efficiency. Definition of idle speed: Idle speed refers to the operation of the engine without any load, where it only needs to overcome the internal friction resistance of its components and does not output power externally. The minimum speed required to maintain stable engine operation is called idle speed, which is one of the five basic operating conditions of an engine. A well-functioning engine typically has an idle speed of 550-800 RPM. In automobiles, idle speed refers to a specific operating condition where the engine runs without any load, i.e., the gear is in neutral. The engine speed during this condition is referred to as the idle speed. Purpose of idle speed: The idle speed can be adjusted by modifying the throttle opening and idle fuel supply. Generally, the optimal idle speed is the lowest RPM at which the engine operates smoothly without vibration and maintains good acceleration performance.
I've been driving the Geely Binyue for some time, let's talk about idling. Under normal warm engine conditions, the idle speed stays around 750 RPM. Watching the dashboard, fluctuations between 700-800 RPM are considered stable. During cold starts, the RPM initially surges to over 1000 when first ignited, then gradually drops to the normal range within half a minute - it might take a few dozen seconds longer in winter. Occasionally seeing the tachometer jitter at traffic lights is normal, but if it consistently stays below 600 RPM or above 900 RPM, there's likely an issue. Last time I experienced unstable idling, inspection revealed carbon buildup in the throttle body - cleaning solved it. Remember not to warm up the engine while stationary for extended periods; it wastes fuel and harms the engine. Warming up by driving at low speeds is more scientifically sound.
Attention to all Bin Yue owners, keep an eye on your tachometer. The manufacturer's calibrated hot idle speed is between 700-800 RPM. In my case, it rises to around 850 RPM when the AC is on due to the additional energy consumption of the compressor. If you notice higher than normal idle speed, don't panic. First, recall whether you've recently used lower octane fuel or if the air filter hasn't been changed for too long. Last time my car had unstable idle, the mechanic said the oxygen sensor might be clogged with carbon deposits - it returned to normal after cleaning. Remember to have technicians check fault codes during regular maintenance, as issues with precision components like the electronic throttle can also affect idle stability.
