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2007 chevy silverado voltage gauge works no other guage working
Instruments and meters are indispensable tools for diagnosing automobile faults. They should be used as much as possible when conditions permit. Vehicle mounted instruments and indicators can effectively indicate the faults of the vehicle. For example, the fuel gauge indicates the fuel quantity of the fuel quantity. When the vehicle cannot be driven and the fuel gauge indicates zero, it indicates that the vehicle has no fuel, rather than a fault. If the brake warning lamp is on, it indicates that there is a fault in the braking system, which should be further found. Voltmeter for automobile indicates the voltage value of automobile electrical system. It can also accurately judge the power generation of generator and the charging of battery during driving; Whenever an electrical equipment switch is used, the voltmeter reflects, that is, it can judge whether the electrical equipment works normally. The non-contact tachometer for automobile can accurately measure the real-time speed of the engine, indicate the engine speed during driving, and indicate the change of engine speed during gear shifting. With the engine tachometer, some faults of the engine can also be reflected by the tachometer. The cylinder pressure gauge for maintenance can measure the pressure difference between the cylinder and each cylinder, as well as the air leakage of each cylinder; The multimeter can easily judge the faults of automobile electrical system; The front wheel alignment instrument can also measure the front wheel alignment parameters of the automobile; The sound level meter can measure the noise of automobile and engine; Opacimeter, fifth wheel tester, brake test bench and automobile drum test bench are all instruments and test equipment used in automobile maintenance. These special equipment shall be used when necessary. It is difficult to master the knowledge of instruments and electronic diagnostic equipment. We should have basic knowledge and study hard in order to master and diagnose the difficult faults on the car.
2007 Chevrolet Silverado voltmeter gauge works and no other gauge working, when the automobile instrument is abnormal, the wire removal method is often used for inspection, that is, the wire of relevant instrument terminal is removed to judge the cause and position of the fault. When the automobile electrical instrument is abnormal, through analysis and inference, it may be that the sensor is poorly grounded or damaged, and there is an open circuit fault in the wire between the sensor and the indicating instrument, the grounding method is often used for inspection, and the relevant terminal is grounded through the wire to judge the cause and location of the fault. When the reading of the instrument is not sensitive, the reading of the standard instrument can be compared with the abnormal instrument, so as to judge the technical condition of the inspected instrument. When other electrical instruments work normally and only the instruments connected with the regulator (such as fuel gauge and electromagnetic coolant thermometer) work abnormally, use wires to jumper the input and output terminals of the regulator. If the pointer of the instrument connected with the regulator deflects immediately, it is an internal fault of the regulator.
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