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Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1198 (Charging System) >> Diagnosis And Testing >> Pinpoint Tests >> Special Tool(s) >> Pinpoint Test F: The Generator is Noisy >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. 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 several sources of generator noise which include: bearing noise, electrical fault noise, generator or belt pulley misalignment. 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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