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Automobile Fault Diagnostic

2016-09-14 09:44:00

   Fault diagnosis is to find reasons for failure analysis and parts of the judgment,the inspection process.Basically there are two cars for fault current diagnostic methods:one is artificial visual experience in diagnostics,diagnostic equipment is another method.

    1.Equipment diagnostics

    Equipment diagnostics in the case of automobile assembly without disassembly,access to information by equipment failures and vehicle performance parameters, and compared with normal technical condition of vehicle,technical performance and diagnosis - fault.With the electronic information and computer technology in the car, the car fault diagnosis equipment increasingly sophisticated,more and more advanced instruments used in automobile troubleshooting.Equipment fault diagnosis of high speed,high accuracy,and can discover latent faults,but also to predict the service life of the assembly member.

    2.Artificial Experience Diagnostics

    Artificial Experience Diagnostic method is a case where the inspection personnel with practical experience feeling and observation,by a simple tool, not the disintegration or partial disintegration in the car,by how,seeing,ears,hands touching,sniffing method,the performance of automotive technology and qualitative fault diagnosis,the specific approach is:How the "three-legged throttle" by slow acceleration from the engine idle speed to check the technical state of the engine speed;acceleration hard acceleration by checking the engine;the use of accelerated glide test car smooth abnormal,check the engine idle speed of chassis assembly member,while leveraging off the fire,engine oil off test abnormal sound.Questioning cars with mileage,usage and maintenance of the recent situation,a harbinger of failure and so on.Seeing:by looking at the observation car of oil spills, leaks, leak, leakage parts; the work of each instrument signals,exhaust,deviation,jitter engine and steering swing like.Ears: listen to the engine noise observed in a variety of speed,carburetor tempering sound muffler chug and put guns,engine knock and unusual percussion.

    Hand touch:touch temperature malfunction site,rattling vibration,the mating parts of overheating,the tightness of the bearing,assembly parts,diesel engine high pressure tubing pulsation.

    Snorted:Olfactory special smell in the car running, issue,such as the clutch plate burning odor,unusual burning smell lubricating circuit gum line burnt taste like.


    The Prevention Of Car Trouble

    1.Serious make cars run record,always pay attention to changes in the main technical parameters of the car,after the technical parameters statistics,digitized,automotive forecasting operating status and possible malfunctions.

    2.Impose periodic maintenance,regular inspection system,use preventive measures to establish a new concept car.

    3.Strengthening routine maintenance of the vehicle,conscientiously really good car before running cleaning,lubrication,tight,inspection,adjustment and anti-corrosion work.

    4.Drivers to enhance the professional skills of learning and actively participate in professional and technical training to improve their professional skills and sense of responsibility,dedication.At the same time we want to learn self-technical summary of accumulated driving experience,improve the overall quality.

    5.Troubleshooting car thoroughly,and to take effective measures to prevent the recurrence of similar failures,prohibiting sick with cars.

    You can also use the OBD Diagnostic Scanner to detect problems.For example ELM327 and mpm com etc.