not alternator or battery, what else??

1994 MITSUBISHI 3000GT
187,000 MILES • 4 CYL • FWD • AUTOMATIC
Avatar
KAYLATRACEY1991
  • MEMBER
  • 3 POSTS
I have a 1994 Mitsubishi Galant LS, and when I take the negative battery terminal off the car stops running, and I already replaced the battery and the alternator. What else could it be?
May 5, 2011 at 4:27 PM
Advertisement
Avatar
WRENCHTECH
  • CERTIFIED EXPERT
  • 20,761 POSTS
First off, don't ever do that unless you want to by every computer in the car. You need to test the charging voltage across the battery with the engine idling and no accessories on
May 5, 2011 at 4:45 PM
Avatar
KAYLATRACEY1991
  • MEMBER
  • 3 POSTS
I tested the alternator and it outputs 15amps on idle.
May 5, 2011 at 5:43 PM
Advertisement
Avatar
WRENCHTECH
  • CERTIFIED EXPERT
  • 20,761 POSTS
That's not what I asked you to do.
May 5, 2011 at 5:52 PM
Avatar
KAYLATRACEY1991
  • MEMBER
  • 3 POSTS
How do I test the charging voltage across the battery??
May 5, 2011 at 7:31 PM
Avatar
WRENCHTECH
  • CERTIFIED EXPERT
  • 20,761 POSTS
You take a digital voltmeter and you measure the voltage across the battery between positive and negative. It has to read between 13.5 and 14.8 volts
May 5, 2011 at 7:33 PM