LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2001 >> Excursion 7.3 F, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 52 (Charging System - Generators & Regulators - Dual Generators) >> On-Vehicle Testing >> Generator No-Load Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Generator No-Load Test

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2003 Ford RV Cutaway, 2003 Ford Econoline, 2003 Ford E550 Super Duty, 2003 Ford E450 Super Duty, and 2003 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

Connect a voltmeter positive lead to B+ terminal on generator and negative lead to ground. Start and run engine at 2000 RPM, with all accessories off. Read voltmeter when voltage stabilizes. Voltage should be 13-15 volts. If voltage is not as specified, repair by symptom. See SYMPTOM INDEX  table under SYSTEM TESTS.

scientia non olet · About LEMON Manuals