What are the main factors that cause the failure of the automobile transmission system?
Belt, bearing wear abnormal sound. Household cars are usually selected in the structure of the belt drive the power of the engine to the generators, air conditioning compressors, steering pumps, pumps and other components. However, due to quality problems or poor working conditions will lead to early wear and tear caused by the belt slip. The same problem often occurs in air-conditioning bearings, water pump bearings, generator bearings and other bearing parts. This abnormal sound is often harsh sound, the volume is high and the cool car obvious. Judgment method is relatively simple, with a wooden stick (or metal rods, long-handled, etc.) arrived in a certain part of the car, close to the abnormal sound when the sound has changed significantly. This failure can be eliminated by replacing excessive wear parts.
Reduced working efficiency of the engine lubrication system causes excessive friction of the parts. May be long-term do not make oil changes caused by the deterioration of the engine lubricating oil failure, or lubrication caused by the decline in sealing oil pressure is not enough, will make the engine lubrication effect decreased, resulting in excessive damage to the friction parts. This mechanical abnormal sound vibration frequency and the engine speed (excitation frequency) has a direct relationship between the normal working speed of the engine in the 800-5000 r / min. The frequency of noise is high, the human ear can only hear the sound of continuous or intermittent time is very short, with the engine speed increases, abnormal sound in the volume and frequency are increased. If your car appeared above the abnormal shape, it is necessary to do the psychological preparation, and at least is disassembled engine repair inspection wear situation.
Motivated broken cylinder. This abnormal sound is better to identify, abnormal sound with the engine strong jitter, and the sound frequency and jitter frequency the same. If you encounter this situation, do not panic, near to find a service station to check the engine fuel, ignition, gas and engine computer, troubleshooting can be.
