7 most common failures in car engines
(Baonghean.vn) - The engine is the most important part of a car. So you need to understand the common engine failures to fix them quickly and effectively.
1. Car engine won't start
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There are many causes for the car engine not starting: No spark. No gasoline in the tank. No gasoline in the carburetor float. Clogged fuel filter. Clogged fuel pipes. Pump does not pump gasoline. Water in the carburetor float.
Or there is air in the fuel system. The throttle valve closes frequently. The carburetor relay is clogged. The insulation properties of the battery ignition system are damaged. The spark plug gap is not up to standard. The capacitor is not working. The battery is discharged...
When encountering this phenomenon, you can repair simple problems yourself such as replacing spark plugs, cleaning the fuel tank...; other damages are difficult to fix yourself if you do not have repair experience. Therefore, when the car has this error, it is best to go to the manufacturer's center for the best inspection and repair.
2. The engine can still start but easily stalls.
This error is caused by the fuel pump not pumping enough fuel into the carburetor, the choke position is not adjusted, the fuel level in the float tank increases suddenly.
These errors require you to take your car to be checked. In addition, the phenomenon of the engine easily stalling is also due to the air filter being blocked, you can replace the car air filter yourself at home because this is a fairly simple replacement part.
3. The car engine is not working properly, low rpm
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With this error, it is usually due to the carburetor idle system not working properly, the gasket between the carburetor flange and the intake pipe is damaged. In addition, it may be due to the high voltage wires not being placed in the correct working order of the engine, the spark plug is contaminated with oil or water gets into the cylinder.
To fix this, you need to take your car in for inspection to find out the cause of the above problems that lead to the car working unstably and having low rpm.
4. Engine not running at full capacity
When the car engine cannot produce full power, the error is usually due to: The carburetor's economy system is not working. The gasket between the upper and middle parts of the carburetor is broken. The fuel valve is not fully opened. The distributor's screw adjustment mechanism is not adjusted correctly. The valve clearances are not up to standard. The piston ring is worn. The muffler (silencer) is worn. The engine's valve is burnt...
With these errors, what you need to do is bring your car to a reputable address for timely inspection and replacement to avoid more serious damage.
5. Engine knocking
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Causes: Using fuel with low octane value (replace with suitable new fuel). Soot in the combustion chamber. Using unsuitable spark plugs. Engine valve clearance is too large. Engine piston and cylinder are worn. Piston pin is worn. Main bearing is worn. Connecting rod bearing is worn. Camshaft gear teeth are worn. Camshaft bushing is worn. Camshaft support flange is worn.
The above mentioned diseases that cause the engine to knock are also very dangerous for the car engine if not handled and replaced promptly. So it is best to take the car to be checked and repaired early before it is too late to avoid more serious damage to the car engine.
6. Engine overheating
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When the engine is too hot, you need to check the coolant, if it is out, add more water. Other errors are also the cause of engine overheating such as: Ignition device is broken. Gear, valve timing is not installed correctly. Fan belt is slipping. Thermostat valve is not working. Radiator is clogged. Radiator shutter is not fully open. Wrongly set the lever to adjust the heating level of the combustible mixture. Water in the radiator freezes...
When the engine overheats, the vehicle should be taken to a service center for inspection and repair to avoid damage.
7. The car suddenly died while running
This error is caused by the following: No spark. No fuel (maybe out of gas). Camshaft gear is broken. Coil coil high voltage wire (central high voltage wire) is loose. Fuel line is leaking. Fuel level in the carburetor float chamber is not up to standard. Pressure in the carburetor is out of balance. Pressure in the engine cylinders is reduced. Fuel has a low octane value...
When this happens, call a tow truck to take the car to the garage for inspection and repair.