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    1. Step on the accelerator and notice that the acceleration is not obvious, there is no power, and the engine has a hysterical sound. The most likely time is when the engine is hot or cold, or when it is short of oil. Causes of such problems can be divided into air filters, spark plugs, ignition wires, gasoline, fuel filters, gasifiers, oil pumps and other issues. Check the air filter, is not dirty, the spark plug is not old, have to change, the ignition coil is broken, the gasoline is not clean, such as the water in the oil. Also check the oil pump, carburetor and the like.
   2. When the sprinkler is running, the acceleration is normal and the ignition may be normal. However, if the engine is running at a constant speed, the speed of the engine is found to be too high, but the speed seems to be unresolved. Try to check the coolant, the oil pressure is too high, or too low, check the oil pressure gauge, there may be a problem with the ignition timing setting, and it can also cause such symptoms. It may be internal engine problems, such as EGR valve blockage.    Â
   3. The sprinkler engine has a squeaky sound, which is the same as steam or air coming out of the engine. After hearing this sound, the engine will quickly lose power. Possible problems, engine overheating, check the cooling system.
   4. When the sprinkler accelerates, the engine will scream, or it will appear when it is decelerating. In short, the RPM will change and the sound will change. For possible reasons, the power steering oil is lacking and it is filled with oil. Generator bearings may be damaged. Power steering pumps and pump problems all produce similar noise. Â
5. When the engine speeds up, it makes a squeaky sound as if something is shooting metal. When it is speeding up, it may not be heard when you are driving. It may be caused by a cylinder valve. The adjustment valve can be changed. Lack of oil, lack of oil may also cause similar problems, there is the oil pressure is relatively low, you have to check the engine oil pressure. Â Â Â
6. When you step on the accelerator pedal, you will hear a squeak, and the buzzing sound will come out of the exhaust pipe. The sound may not be so great that the car will not be abnormal and the fuel consumption will increase. It is recommended to check the silencer and check if the exhaust pipe is damaged. Â Â Â
7. The engine has a kicking sound, like a pencil knocking at a desk, and the sound increases as the engine speed increases. Possible causes are turbid substances inside the engine. It is recommended to change the oil, filter the machine, and wash the engine. Others may be valve problems.
8. The sprinkler may have no problem during driving. When it accelerates, there will be a sound of a card, and it is advisable to check the ignition timing setting. The engine may be overheated, the engine may be charred, and the oil may not be good. It is necessary to increase the level of oil. Â Â
9. At low speeds, or when the throttle is on, there will be a Cronkonian sound below the engine, especially when the weather is cooler. It is advisable to raise the height of the frame and check whether there is a block of heat insulation between the exhaust pipe and the floor. This may be caused by the aging of the insulation board, replacement, or removal.
The acceleration of the engine of the sprinkler is not obvious, and the cause of the abnormal noise of the nine major vehicles is: