What should I do if my car air filter is clogged?

Air cleaners should be replaced every 15,000 km, but depending on road conditions and air quality. If you're driving on a dusty or gravel-laden road, your air cleaner will collect dust faster than a vehicle that only drives on the highway. The only way to tell if you need to replace an air cleaner is to remove the filter and inspect it carefully.

It's not an exaggeration to say that air filters can perform preventative maintenance on your engine. The function of the air filter is to remove dust, carbon particles, some water vapor and other debris from the air before it is inhaled and mixed with the fuel, so that clean air enters the cylinder. Theoretically, about 10,000 units of clean air are required for each unit volume of fuel burned.

Generally, car manufacturers recommend that the replacement interval for normal maintenance of air filters is 10,000 km, and a routine inspection is carried out every 10,000 km; The recommended replacement interval for conservative maintenance is 10,000 km. Generally, the air filter of a car must be changed once every 20,000km, and the air filter must be replaced every 25,000km. Generally, the inspection is carried out at 10,000 km, and it is best to check once at 2,000 km in spring.

There is still no standard for replacing the filter element. If the filter is really dirty, it should definitely be replaced. From the perspective of caring for the vehicle, it is recommended that you replace it in advance according to the cycle.

There are many models of air filters on the market, not only different models, but also different shapes of products of the same model and different years. If you replace it yourself, it is best to remove the old parts first and go to a reputable parts dealer to compare and buy. A high-quality air filter paper is very dense, uniform in texture and color, there is no stubble on the filter paper and plastic edges, and the barbed wire that supports the filter paper is also neat and odorless, while the air filter that does not have the above characteristics may be counterfeit or made of recycled materials.

Fault inspection: First of all, the staff of our station first replaced the oil low-pressure induction plug, and the fault could not be ruled out, and then further inspection, it was found that the idle oil pressure at the high-pressure induction plug was measured by a pressure gauge to be 200kpa, and the low-pressure induction plug was only 10kpa when idling, and the situation was abnormal. Failure Analysis:

Because the oil high-pressure switch is installed at the head of the oil channel, and the low-pressure switch is installed at the end of the oil channel, the high-pressure pressure is normal. The low pressure is too low may be the oil filter is blocked, and the bypass valve in the oil filter is not opened, causing an alarm failure. Troubleshooting:

Troubleshoot after replacing the oil with a new oil and oil filter. Fault phenomenon: Ignite immediately after starting.

Fault inspection: the maintenance personnel first check the timing, the verification is correct, after asking the driver, the driver reflected, the hot car before the fault was washed with cold water, and then the engine "suddenly" tempered weakly, black smoke phenomenon. Because the driver is in a hurry, the vehicle stalls after driving sick for a few days and cannot drive, according to which it may be that some electrical components are damaged due to cold water washing.

When the engine was inspected, it was found that one side of the two and three was cracked, so there was no fire in the second and third. Replace the engine is unstable, no idling, our station personnel further check the throttle valve body dirty, suspect that the engine tempering may have damaged the air flow meter, so replace the air flow meter, and then test troubleshooting, everything is normal.

With the vehicle turned off for cooling, open the engine compartment cover; Find the location of the air filter, which is usually on the right side of the engine. If you can't find it, you can check the vehicle's manual, which will be marked with the location. Remove the filter cartridge:

First, remove the nut that holds the cover in place, pull the baffle apart, and remove the filter. When taking it out, it is necessary to recognize the front and back of the filter element, most of the air filter elements can be directly identified, but there are still some filter elements that are not much different from the front and back. So remember to identify it when you take it out.

Clean the filter: To be honest, the air filter that has not been cleaned for a long time must be covered with dust. The best way to do this is to blow the dust out from the inside out with a blow gun.

If you don't have an air gun, you can shake the dust out with a tap, and then use a brush to brush the exterior clean. Of course, most cars now use dry paper filters, and they should never be cleaned with water. The last thing is to put the air filter back on, and remember not to install it backwards.

A clogged gasoline filter will have the following symptoms:

1. When the vehicle is idling, the engine shakes and the gasoline filter is blocked, and the fuel system will have poor oil supply and insufficient oil pressure. When the engine is working, the injectors will have poor atomization, which will lead to insufficient combustion of the mixture.

2. The driving comfort of the vehicle becomes poor, and there will be a feeling of frustration and shrugging in serious cases. It is also caused by insufficient combustion of the mixture due to poor oil supply. This symptomatic phenomenon is not obvious in the low-load state, but it is felt in the high-load condition such as uphill.

4. The fuel consumption of the vehicle increases. Fuel consumption increases due to insufficient fuel in the mixture due to a clogged gasoline filter.

The new car has an air filter blockage fault, and now the car uses an electronically controlled engine, there are many sensors to detect the working conditions of the engine, and then the signal is fed back to the computer, after the computer analyzes and compares, and then controls the fuel injection ignition and air intake, if there is a problem with the detection of each sensor of the engine, the computer will report the fault code to remind the owner, the engine needs to be tested and repaired, so we have to find out the reasons for this failure, there are often the following reasons, for reference only: 1. The sensor is damaged, Poor contact or signal interruption; 2. Poor engine maintenance; 3. The quality of fuel and oil is not good; 4. The combustion of the mixture is insufficient; 5. Spark plug failure, ignition coil failure; 6. The fuel pump is faulty and the oil circuit is blocked; 7. The air conditioner filter is blocked.

The specific situation is analyzed as follows; 1. Sensor problems; The sensors mentioned here include water temperature, crankshaft position, air flow, intake air temperature, oxygen sensor, etc., when these sensors are damaged, poor contact or signal interruption, the ECU of the car can not accurately obtain the engine data, at this time it will cause the engine fault light to turn on. 2. Maintenance problems; Poor engine maintenance is the most common cause of engine failure to light up. We know that the vehicle has a certain maintenance cycle, if the owner does not maintain on time, coupled with bad driving habits, then it will increase the burden of engine operation, and finally can only remind you through the fault light to care about your car 3, oil quality problems; The oil quality here includes fuel and engine oil, we know that the fuel filled by the car is generally marked, and the engine oil is also semi-synthetic and fully synthetic, the manufacturer will generally recommend the owner to use which grade of fuel, which type of engine oil, if the owner does not add as required, it will cause wear and tear of the engine in the long run, and the fault light is not to blame.

Poor combustion of the mixture; The failure of the spark plug, ignition coil, fuel pump, and oil circuit blockage of the engine will cause poor combustion of the engine mixture. Poor combustion of the mixture is caused by the problem of engine carbon deposition or knocking, and these will eventually be detected by the engine's oxygen sensor and reported to the ECU, which will naturally turn on the fault light to warn of the intake air intake problem; When the engine burns, it needs to take intake, the air filter element is very important in this process, if the air filter element of the car is not clean, it will affect the air intake of the car if it is not cleaned regularly, and it will be blocked for a long time, and if it is serious, it will cause the engine failure light to turn on. pressurization issues; Intake booster lines and turbochargers can also cause engine failure lights to illuminate.

The most common of these is turbocharger damage, while the vehicle can also experience symptoms such as oil leakage, high oil consumption, loss of power, metal noise, and blue or black smoke from the exhaust pipe. 7. Exhaust problems; Rear oxygen sensor, three-way catalytic converter, exhaust camshaft and bearing. The most common of these is a failure of the three-way catalytic converter that causes the engine failure light to illuminate.

The use of leaded gasoline, the use of leaded or silicone lubricant additives, the bump of the three-way catalytic converter, and the failure of the engine oil supply system are some of the factors that can easily cause the failure of the three-way catalytic converter.

When the pipe or core of the air filter is blocked by dirt and scale, due to the serious lack of air intake, the engine has the following faults: after the pipe or filter element of the air filter is blocked by dirt, due to the serious lack of air intake, the engine will have the following fault phenomena: when the accelerator pedal is continuously pressed, the engine sound is muffled, the acceleration response is slow, the operation is weak, the water plant is raised, and the exhaust is gray-black.

If the above phenomenon occurs in the engine, it can be concluded that the air filter is dryly blocked. The second is the intuitive inspection method, that is, when you find that the paper filter has turned gray-black, it means that it has been clogged and can no longer be used. Replace the filter if the following conditions occur:

1) When it is judged that the air filter element is blocked, it is necessary to maintain or replace the cleaning and core in time. The criteria for deciding on maintenance or replacement are: After wiping the dust on the surface of the air filter, when the dust is blown from the inside to the outside with compressed air, if the inner and outer surfaces of the filter show the original color, it means that the filter can continue to be used; If the inner and outer surfaces of the core are gray-black, the filter should be replaced with a new one.

2) The inner surface of the air filter element is grayish-black, indicating that dust particles have penetrated the filter paper, and the filter element should be replaced immediately. (3) Replace the filter elements that have aged and deteriorated or have been washed with water and oil and have poor sealing.

Hello, if the air filter is not seriously blocked, it can be disassembled and cleaned, and if the blockage is serious, it can be replaced directly.

Air filter is the abbreviation of air filter.

The engine has to suck in a large amount of air during the working process, and if the air is not filtered, the dust suspended in the air is sucked into the cylinder, which will accelerate the wear of the piston group and the cylinder. Larger particles enter between the piston and the cylinder, causing a severe "cylinder pulling" phenomenon, which is especially acute in a dry and sandy working environment. The air filter is installed in front of the carburetor or intake pipe to filter out dust and sand particles in the air and ensure that sufficient and clean air enters the cylinder.

According to the principle of filtration, air filters can be divided into filtering, centrifugal, oil bath, and compound.

During maintenance, the paper filter element must not be cleaned in oil, otherwise the paper filter element will fail, and it is easy to cause a speeding accident. During maintenance, only the vibration method, the soft brush removal method (to brush along the wrinkles) or the compressed air backflush method can be used to remove the dust and dirt attached to the surface of the paper filter element. For the coarse filter part, the dust should be removed in time from the dust collection parts, blades and cyclone pipes.

Even if it can be carefully maintained every time, the paper filter element cannot fully restore its original performance, and its air intake resistance will increase, so when the paper filter element needs to be maintained for the fourth time, it is generally necessary to replace the new filter element. If the paper filter element is cracked, perforated, or the filter paper is deglued from the end cap, it should be replaced immediately.

If the air filter is clogged, it may cause your vehicle to stall while driving. Because there is a chance that your air intake passage will become blocked.

There is no need to clean the air filter, and it can be replaced for a long time.

This is easy to consume fuel, or the power of the car will also be reduced.

If the air filter element is blocked or damaged, the first is that the engine air intake is insufficient, so that the fuel combustion is incomplete, resulting in unstable engine work, power decrease, and fuel consumption increases;

Second, it can cause the engine to inhale a large amount of air with fine dust particles during work, which not only greatly shortens the life of the oil filter, but also leads to the aggravation of the internal wear of the engine and increases the probability of damage.

The main components of the air filter are the filter element and the casing, in which the filter element is the main filtration part, which undertakes the filtering work of gas, and it is required to be able to undertake high-efficiency air filtration work, not to add too much resistance to air flow, and to work continuously for a long time.