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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 242 (Charging System - Generators & Regulators - Excursion, F250-F550 Super Duty (Gasoline)) >> System Tests >> Test G: Generator Noisy

Test G: Generator Noisy

WARNING: This page is about a different car, the 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, 2004 Ford Excursion, and 2004 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

  1. Check For Accessory Drive Belt Noise & Loose Mounting Brackets

    Turn ignition off. Check accessory drive belt for damage and correct installation. Check mounting brackets and pulleys for looseness and damage. Is the accessory drive okay? If yes, go to next step. If no, repair as necessary. Test the system for normal operation.

  2. Check Generator For Excessive Electrical Noise

    Disconnect generator 3-pin harness connector. Start engine and let idle. Is the noise still present? If yes, go to next step. If no, replace generator. See GENERATOR  under REMOVAL & INSTALLATION. Test the system for normal operation.

  3. Check Generator For Mechanical Noise

    Turn ignition off. Connect generator harness connector. Start engine and let idle. Turn all accessories off. Using a stethoscope, check generator for unusual mechanical noise. Is the generator the noise source? If yes, replace generator. See GENERATOR  under REMOVAL & INSTALLATION. Test the system for normal operation. If no, diagnose the source of the engine noise.
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