5 causes and solutions when cars emit black smoke
(Baonghean.vn) - Many people when using cars often do not care about why the car emits black smoke, because they often think that this is due to the engine burning excess gasoline. But when the phenomenon of black smoke continues and increases, the consequences are quite serious. If not quickly fixed, it will cause serious damage to the car.
1. Dirty or damaged engine air filter
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A dirty or damaged engine air filter will allow dust to enter the air and combustion chamber, causing the vehicle to emit black smoke. Regularly clean and replace the engine air filter.
2. Spark plugs are dirty
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When the air filter is not good, using the vehicle for a long time causes the spark plug to be covered with black soot when the ignition is running, causing the vehicle to emit black smoke.
In this case, it is best to check the air filter and replace the spark plugs, partly to fix the black smoke and partly to help the ignition system work better.
3. High pressure pump is clogged or broken
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High pressure pump is cloggedFailure causes insufficient pressure, fuel injected into the combustion chamber is not mixed well with air and does not burn completely, resulting in black exhaust gas during operation.The solution is to replace the high pressure pump and clean the fuel filter to be sure.
4. Fuel injector is damaged or clogged
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It could be due to dirty fuel source, when the injector is not cleaned for a long time, causing the injector to clog and accumulate soot, so the combustion chamber is filled with dirt when burning fuel for the engine and emits black gas.
To fix this, clean the injector or replace the fuel injector to fix the error and help save fuel, protecting the vehicle's combustion chamber engine.
5. Poor air intake, loose piston rings, worn cylinders
When the compressed air pressure has not reached the required value to completely burn the diesel, causing excess fuel to be discharged through the exhaust pipe, creating black smoke due to the cylinder head in the engine being worn...
Use a pressure gauge to check the pressure in the combustion chamber to know exactly which part is causing the error and fix it.
