Common basic diagnosis methods of automobile faults

There are basically 12 methods for automobile fault diagnosis: look at the problem, observe, listen, measure, touch, smell, change, instrument, measure, sectional inspection and partial disassembly.

Prospect of automobile fault diagnosis methods;

When a car breaks down, it needs to be diagnosed. When the repairman looks at the car for the first time, he should make a preliminary judgment on the shape and service life of the car. It is very important to know the shape of a car from its appearance. From the appearance, the service life can be judged by exposing the engine or flipping the cab, and experienced maintenance personnel can even judge the car fault immediately.

Empirical method of automobile fault diagnosis;

As the name implies, empirical fault diagnosis is to diagnose automobile faults quickly and accurately according to the basic quality and rich experience of drivers and maintenance personnel.

Observation method of automobile fault diagnosis method;

Observation means that the automobile mechanic carefully observes the fault phenomenon according to the fault position pointed out by the automobile user, and then makes a judgment on the fault. This is the most widely used, basic and effective fault diagnosis method.

Auditory method for automobile fault diagnosis;

Auditory diagnosis of automobile and engine faults is a common and simple method. When the car is running, the engine runs under different working conditions, and the whole car and the engine make noisy but regular sounds. There will be abnormal noise when something goes wrong. Experienced people can immediately judge the car fault according to the abnormal sound.

Test method of automobile fault diagnosis method;

Test method is one of the common methods to diagnose automobile and engine faults. This test method can check the functions of the car and the engine under the condition that the car is not disassembled or rarely disassembled, so as to achieve the purpose of fault diagnosis.