Generator Load Test
WARNING: This page is about a different car, the 2003 Ford Windstar and 2002 Ford Windstar. However, it is still accessible from the selected car via links, so may be relevant.
Verify battery condition. Charge or replace battery as necessary. Connect load tester and ammeter according to tool manufacturer's instructions. With engine running at 2000 RPM and all accessories off, load system until amperage output peaks. Generator should produce at least 89 amps at 2000 RPM. If output is not as specified, repair by symptom. See SYMPTOM INDEX table under SYSTEM TESTS.