A dirty air filter reduces the amount of air supplied to the engine. This can cause an increase in unburned fuel that turns into soot residue. Soot can build up on spark plug tips, making them unable to produce a proper spark. In return, the car may move abruptly, idle, and in some circumstances, the engine may fail.
Engine misfires, rough idling, and hard starts can be attributed to a clogged engine air filter. The dirty air filter restricts air supply to the engine, causing unburned fuel to form a soot residue that accumulates in the spark plug. This fouls the spark plug (s) and decreases its ability to produce the spark needed for the combustion process. Changing the affected air filter and spark plugs will restore your engine's performance.
Something as simple as an air filter can cause everything from harmful emissions, fuel waste, damaged spark plugs and engine buildup. That's why it's smart to monitor parts that suffer a lot of wear and tear. Engine misfire can significantly increase vehicle emissions. For this reason, the ECM constantly monitors the misfire status of the engine.
If it detects an engine misfire, turn on the CEL. Decreased fuel economy is a clear sign of a faulty or dirty air filter. A bad or dirty air filter restricts airflow and reduces oxygen in the mixture. Your engine compensates for this by consuming more fuel to produce enough power to move the same distance or speed as it could with a clean filter.
In severe cases, a dirty engine air filter can cause or contribute to overheating. Like low fuel consumption, overheating is attributed to a high-performance engine. If your vehicle's engine air filter is clogged or dirty, less oxygen will enter the combustion chamber. Since all fuel burns in the combustion chamber, the temperature of the engine can increase, which could cause your vehicle's engine to overheat.
If the light comes on, check the air filter to see if it needs to be replaced before performing other diagnostics. If the air filter becomes too congested during the summer cooling season, it can cause a lack of air flow to the evaporator or cooling coils. Most automotive companies recommend changing the air filter every 10,000 to 15,000 miles or every 12 months. With inadequate air supply, unburned fuel leaves the engine and may not produce smoke or flames in the process.
Note that the inner layers of filter paper inside the air cleaner may have no visible debris or dust and dirt, even in bright light. Inadequate air supply can cause carbon deposits, the by-product of combustion, to build up in the engine and the engine check light to go out. If the filter becomes too clogged with dust, dander and debris, then the blower has to work harder to get air through the blocked filter. Inadequate air supply can cause carbon deposits to build up on the engine, which will eventually activate the engine check light.
If you notice that your car vibrates excessively or you hear coughing or clicking noises, it is often due to a clogged air filter that dirties or damages a spark plug. For every gallon of gasoline consumed by a car, it must be able to ingest thousands of gallons of air to process that fuel efficiently. However, you can clean reusable and foam filters, but only with specific applications, and you must dry them before replacing them. A clean air filter has a white or off-white color, but as it accumulates dust and dirt, it will look darker.
A visual inspection of your air filter in bright light will show a lot of dirt, but not all tiny particles can be easily seen. Therefore, for safe and optimal performance of your engine, make sure to address dirty air filter symptoms immediately and always have a clean air filter in place. An air filter prevents dirt, debris, pollutants and road bugs from reaching the engine and ensures an adequate supply of air to the engine's combustion chamber. .