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Home >> Ford >> 2012 >> Fiesta SES, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 131 (Charging System) >> Diagnosis And Testing >> Pinpoint Test >> Pinpoint Test F: The Generator is Noisy >> Normal Operation
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Normal Operation

WARNING: This page is about a different car, the 2013 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

The generator is belt-driven by the engine accessory drive system. There are 2 sources of generator noise: bearing noise and electrical fault noise. A generator with certain types of diode or stator failures may also produce an audible noise.

This pinpoint test is intended to diagnose the following: 

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