What is the idle speed of a car?
1 Answers
Engine idle speed is normally between 1100-1500 RPM. Idle condition generally refers to the state where the throttle is fully released and the engine runs naturally. The engine speed in a cold state is higher than in a warm state, primarily to allow the engine to quickly warm up to its normal operating temperature, ensuring good lubrication. Below are relevant details: 1. Idle speed too high/too low: (1) Causes of high/low engine idle speed: Idle switch not closing (faulty idle control valve), intake manifold leak, incorrect valve timing, clogged or poor atomization of fuel injectors, blocked exhaust pipe, etc. (2) Solutions for high/low engine idle speed: Adjust or replace the throttle position sensor; clean or replace the idle control valve and use a specialized decoder for basic idle settings; clean and inspect fuel injectors to meet atomization requirements; replace the catalytic converter; locate system leaks. 2. Precautions during idle: (1) Minimize the use of high-power electrical devices such as air conditioning, high-power audio systems, and external power supply, as these increase the load on the battery and engine. (2) If the engine idle is unstable, shakes, or the RPM is too high or low, avoid driving and promptly check the vehicle's technical condition to prevent issues like stalling or loss of power while driving.
