What is a throttle valve
Simply put, the throttle valve is the throat of a car engine. It is located between the air filter and the intake manifold and is used to control the air. It is a controllable valve entering the engine. The depth of stepping on the accelerator is directly related to the opening of the throttle. Therefore, idle speed, power and other performance are closely related to the cleanliness of the throttle.
Is throttle cleaning necessary?
Throttle valve cleaning is necessary. Because the throttle valve is dirty, the engine power must be the first to bear the brunt. If the throttle valve is too dirty, the throttle movement will be inflexible. The air entering the engine will entrain a lot of impurities, which will affect the normal combustion of gasoline and reduce the working power of the engine. In severe cases, unstable idle speed, difficult starting and reduced power will occur.
What are the symptoms of a dirty throttle valve?
The signs that the throttle valve needs to be cleaned are unstable idling and unstable driving caused by excessive carbon deposits on the throttle valve. There is a sudden feeling of oil loss, and then there is a decrease in power; the more serious situation is difficulty in starting and increased fuel consumption. If the above situation occurs, then throttle valve cleaning must be considered.
How often should the throttle valve be cleaned?
Generally speaking, the throttle valve should be cleaned every 20,000 kilometers to 40,000 kilometers. If your car If the environment is harsh, the cleaning interval will be shortened.
Throttle valve cleaning methods
There are two methods for cleaning the throttle valve: assembly disassembly and cleaning and disassembly-free cleaning. Each of these two methods has its own advantages and disadvantages. .
1. The biggest advantage of no-disassembly cleaning is that it is simple and convenient. Just spray the cleaning agent directly on the throttle and then wipe it; the disadvantage is that the cleaning effect is not very good, and it is best to use it when it is not particularly dirty. on the throttle.
2. The steps for assembly disassembly and cleaning are very cumbersome. It is necessary to remove the entire throttle assembly and then use a special cleaning agent for comprehensive cleaning. The advantage is that the cleaning effect is better than that of no-disassembly cleaning.
How much does it cost to clean a throttle valve once?
Generally, 4S shops clean the throttle valve for disassembly and washing. The entire throttle valve assembly needs to be removed, and then use a special Use the cleaning agent to completely clean and then restore. Although this method is more troublesome, it is more effective in cleaning. The price is also expensive. 4S stores generally charge 300-500.Yuan or so.
Disassembly-free cleaning means directly spraying the throttle valve cleaning agent on the rag to scrub the throttle valve. The entire process does not require disassembly of the throttle valve assembly, and the operation is relatively simple and trouble-free. Car owners can buy cleaning agents by themselves, and the price is only a few dozen yuan each.
Throttle valve cleaning precautions
1. The frequency of cleaning of the throttle valve should not be too high, especially excessive cleaning, otherwise the inner cavity of the throttle valve will be damaged. When the special coating is washed off, it loses its function of protecting the inner wall and becomes more likely to form carbon deposits.
2. After the throttle valve is cleaned, the “opening degree” of the throttle valve must be reset. After all, the car’s driving computer has memorized the opening degree when there is carbon deposit. If it is not reset, the car will still The idle speed is unstable and the speed is too high.
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