Traditional Culture Encyclopedia - The 24 Solar Terms - CRV is noisy. Experts who seek answers can add it.
CRV is noisy. Experts who seek answers can add it.
It has little to do with engine oil. Your car has traveled more than 40,000 kilometers. What you mainly said is that there is noise at idle speed, and the engine should be called jitter. You should change the oil regularly. Even if the oil lubrication coefficient is low, the engine cylinder pressure of this kilometer is not a problem. 1. I don't know what environment and road conditions your vehicle has traveled for more than 40 thousand kilometers. The master knows. 2. According to crv, your local 4S has given you this mileage. Did you really do it? 3。 If your vehicle should run for more than 8,000 kilometers under dry, climatic or dusty road conditions before changing the oil and replacing the air filter element, this means that if the environmental road conditions are not bad, the air intake system of your vehicle will definitely be dirty. First of all, it is reflected in the inner cavity of the throttle body, with more carbon deposits and visible appearance, which leads to a chain reaction, that is, the throttle may be stuck. Slow return, or inaccurate induction of electronic components. , which leads to the change of vacuum degree when the vehicle is idling, and the change of vacuum degree affects the normal parameters of the engine under various working conditions, including the idling condition of the engine (when the throttle valve is fully closed, the vacuum degree is the maximum). This is the engine noise, jitter, basic reasons and other reasons that the owner said. 4. If the air flow density and filter replacement cycle are too long, the throttle valve is too dirty, and the air intake system is not working properly, the air-fuel ratio will also change. The computer of the vehicle itself will also make self-correction and self-adaptation according to the change of the original set parameters of the vehicle engine, which will have an impact on various working conditions of the engine. This is the reason why the owner feels that the current vehicle is different from that when it first left the factory. Need cleaning. Comprehensive reasons lead to poor working conditions of the vehicle engine and insufficient output power, which leads to that the transmission system (continuously variable transmission) can't well overcome the reaction force generated by the solenoid valve and the output power of the engine at the same time, and the transmission is stable and free from stagnation, that is, the owner said that the shift acceleration has a sense of pause. However, the owner must check whether the lubricating oil in the transmission system is deteriorated and replaced regularly, which is the most basic. Specific symptoms also need to see the car and test drive. Then decide, but the above judgments and summaries are generally not wrong.
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