Battery Installation

2004 MERCURY MOUNTAINEER
98,500 MILES • 6 CYL • AWD • AUTOMATIC
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FREDMAYO
  • MEMBER
  • 2 POSTS
Installed a new battery in my 2004 Mercury Mountaineer, battery light keeps coming, needle gauge shows discharge.
Jan 4, 2011 at 6:35 AM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
Was ALT function checked?
Jan 4, 2011 at 6:45 AM
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FREDMAYO
  • MEMBER
  • 2 POSTS
How do I check the alternator function? I have an electrical tester.
Jan 4, 2011 at 7:25 AM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
Check voltage running across BATT terms. Should be 14.5 to 15.5V or higher
Jan 4, 2011 at 7:29 AM
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