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91 ford f150 voltage gauge
Pickup trucks 91 ford f150 are basically 12 volts . The voltmeter checks the battery indicator. When the battery indicator displays green, it indicates that the battery is full and the battery is intact. When the battery indicator displays black, it indicates that the battery is insufficient and needs to be charged.
Measure the static voltage of the battery: the nominal voltage of the car 91 ford f150 battery is 12V, and the actual voltage is higher than this. When the engine is not started, the voltage between the positive and negative electrodes measured with a multimeter should be between 12.5 and 12.8v.
Sometime , when the 91 ford f150 has problems, can check the voltage gauge to find the problem . The storage battery is insufficient; Poor or disordered wire connection; Poor grounding of battery; The distributor or Hall sensor is damaged; The ignition switch is damaged or the wiring is poor; The transistor ignition control unit is damaged or poorly connected.Most of the diagnosis methods of low-voltage circuit fault use ammeter or voltmeter to check line by line to eliminate the fault point. Most of the faults of the high-voltage circuit adopt the high-voltage fire test method, that is, unplug the high-voltage wire in the center of the distributor or the high-voltage wire of a cylinder, place the wire head 3-6mm away from the cylinder, and start the engine for fire test. If there is a spark and the spark is strong, it indicates that the ignition system works normally.
If the red light of the battery voltmeter is always on, it means that the battery is faulty. The general reason is that the battery is too low. The voltmeter should see how much the voltage is. If this happens after running for a long time, you need to check the cause of the fault.
Check whether the battery terminal is oxidized. If it is oxidized, handle it yourself. Battery power loss - use a multimeter to measure the battery voltage. If the voltage is above 12V, it means the battery is OK. Otherwise, it means the battery is damaged. There is a problem with the charging, that is, the charging of the generator is abnormal - when the vehicle is in the state of landing, use a multimeter to measure the battery voltage of 14 volts. If the battery voltage is higher than 14 volts, it means that the generator is OK. If the battery voltage is less than 14 volts, it is the problem of the generator.
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