2005 Ford Explorer Alternator testing

2005 FORD EXPLORER
64,000 MILES • 6 CYL • 4WD • AUTOMATIC
Avatar
JERRY111
  • MEMBER
  • 1 POST
How do I test to find out if my alternator is working properly on my 2005 ford explorer with 4.0 liter V6?The voltage keeps decreasing upon acceleration and use of accesseries.What do you think the problem could be?
Dec 3, 2008 at 9:58 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
DAVE H
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 13,384 POSTS
use a volt meter across battery live and ground terminals ... you should get a reading of between 13/14 volts ... if not put red voltmeter wire to B+ wire on alternator and voltmeter black to negative battery terminal .. again you should get 13/14 volts if your getting below 13 the alternator is not putting out enough ... check wiring between alternator and battery .. if all seems fine alternator may be worn ??
Dec 4, 2008 at 5:55 AM
Advertisement