The engine speed of the sewage suction truck is not obvious, and the reasons for abnormal sounding are as follows:
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 Sewage suction truck is running, the acceleration is normal, the ignition may also be normal, but if you are driving at a constant speed, the engine speed is too high but the speed seems to be still not up. 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.
(3) The sound of a squeaky engine The squeaky sound of the engine is the same as that of steam or air coming out of the engine. After hearing this kind of sound, the engine quickly loses power. Possible problems, engine overheating, check the cooling system. The exhaust system is blocked, the vacuum tube leaks, or it breaks.
4 When the small suction truck accelerates, the engine will scream, or it will appear when it decelerates. 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.
When the engine speeds up, it makes a squeaky sound, and it seems that something is making a 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.
6 When you step on the accelerator pedal, you will hear a squeak, and the sound of the cymbal 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.
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 Dongfeng Sewage Sucker may have no problem in driving. When it is accelerated, it will have the sound of a stuck card. It is recommended to check the ignition timing setting. It may cause the engine to overheat, the engine carbon deposits, and the oil products to be poor. It is necessary to increase the level of oil.
When driving at low speeds or when the accelerator is on, the sound of a krone, such as the kroner, will appear 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.

Xigong Chusheng (Hubei) Special Purpose Vehicle Manufacturing Co., Ltd. specializes in the production of sprinklers, tankers, garbage trucks, sewage suction trucks, suction trucks, compressed garbage trucks, swing arm garbage trucks, sealed garbage trucks, docking Garbage trucks, aerial platforms, mixer trucks and other specialized series of special vehicles, sales hotline, 015672994333, corporate website:

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