Is it necessary to clean the air inlet of the car?

The answer is yes, because all the pistons in the whole engine work asynchronously. When the engine is turned off, the intake valves of some cylinders cannot be completely closed, and some unburned fuel is continuously vaporized and oxidized, resulting in some soft black carbon deposits in the intake pipe, especially after the throttle.

On the one hand, these carbon deposits will make the intake pipe wall rough, and the intake air will produce eddy currents in these rough places, which will affect the intake effect and the quality of the mixture.

On the other hand, these carbon deposits will also block the idle passage, causing the idle control device to jam or exceed its adjustment range, resulting in low idle speed, idle jitter, failure of various auxiliary devices, oil collection and flameout, excessive exhaust and high oil consumption.

If you encounter slow growth, quick refueling and tempering, and difficult cold start when driving, then your car's valve is likely to have carbon deposition. Found that the idle speed is low and the idle speed is shaking, stepped on the accelerator card and accidentally changed the battery. Then, this means that there may be serious carbon deposit in the intake pipe of your vehicle, so you should go to the 4S shop for inspection and clean it up if necessary.

In 4S shopping malls, water inlet pipes are generally not cleaned separately. They usually clean the oil circuit, air intake, throttle, three-way catalyst and the inside of the engine together. The whole set is generally 2000 yuan. If you want to clean the air inlet separately, it is recommended to go directly to the repair shop outside. Prices generally range from 50 to 200 yuan. Million car purchase subsidy