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A vehicle's automotive voltage regulator is the device responsible for controlling the voltage used to recharge the car's battery. It keeps the voltage coming from the vehicle's alternator between 13.5 and 14.5 volts, re... More »

www.reference.com Vehicles Car Parts & Maintenance

To change a voltage regulator in a car, detach the cables from the battery. Remove the positive cable first before removing the negative one. Remove the rear cover of the alternator, and locate the voltage regulator, whi... More »

www.reference.com Vehicles Car Parts & Maintenance

A voltage regulator is a device that maintains the proper spark levels on a car's alternator. If the voltage regulator malfunctions, the alternator can overcharge the electrical system and cause many of the components to... More »

www.reference.com Vehicles Car Parts & Maintenance
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Test the voltage of a car battery when the vehicle is off and when attempting to start it after you disconnect the ignition or fuel injector pump. Batteries should test in the normal range without a load, and the reading... More »

www.reference.com Vehicles Car Parts & Maintenance

To use an Exide car battery charger, remove the battery from the vehicle, attach the charging cables to it, and choose the appropriate voltage and amperes on the charger. Then, provide power supply to the charger, and ad... More »

www.reference.com Vehicles Car Parts & Maintenance

Check a battery using a voltmeter by assessing the static voltage, testing the voltage under full load and checking the charging system voltage. While there are other tests of a battery, these three are a quick way to de... More »

www.reference.com Vehicles Car Parts & Maintenance

To test a car battery with a multimeter, set the multimeter to measure DC voltage, and set the dial to 20 volts; with the car off, disconnect the battery cables and attach the multimeter leads to the positive and negativ... More »

www.reference.com Vehicles Car Parts & Maintenance