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Posts Tagged: Alternator voltage drop test

Alternator Voltage Drop Test to Find Faulty Connections

How to Perform an Alternator voltage drop test An alternator voltage drop test is done to detect issues in the electrical connections between the alternator B+ out and the positive battery terminal and the alternator’s case grounding to the battery – terminal You’ll need a multimeter set to DC volts to perform the test Step 1: Test for voltage drop on the positive side of the alternator circuit Touch one lead to the B+ terminal on the back of the alternator and the other lead to the + battery terminal. … Read More


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