LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2004 >> Excursion 5.4 L, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 19 (Charging System - Generators & Regulators) >> System Tests >> Test G: Generator Noisy
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test G: Generator Noisy

WARNING: This page is about a different car, the 2002 Lincoln Navigator, 2002 Lincoln Blackwood, 2002 Ford Pickup, and 2002 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition off. Check accessory drive belt for damage and correct installation. Check mounting brackets and pulleys for looseness and damage. If problem does not exist, go to next step. If problem exists, repair as necessary.
  2. Check generator installation. Ensure all fasteners are tight. If problem does not exist, go to next step. If problem exists, repair as necessary.
  3. Disconnect generator 3-pin harness connector. Start engine and let idle. Turn headlights on. Turn rear defogger on. Turn blower motor to high speed. If noise still exists, go to next step. If noise does not still exist, replace generator. See GENERATOR  under REMOVAL & INSTALLATION.
  4. 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. If generator is source of noise, replace generator. See GENERATOR  under REMOVAL & INSTALLATION. If generator is not source of noise, isolate noise and repair as necessary.
scientia non olet · About LEMON Manuals