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Battery light on?

Tiny
MAXBRO
  • MEMBER
  • 1998 FORD F-150
  • 175,000 MILES
I have a 1998 F150 with a 4.2l engine. What could cause the battery light on the instrument cluster to light even though the gauge shows the battery is charging at the same rate it always has?

Cables on the battery are tight and clean (battery is 7 years old).
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Sunday, March 11th, 2012 AT 9:58 PM

7 Replies

Tiny
MAXBRO
  • MEMBER
  • 7 POSTS
(what would cause the battery light on instrument cluster to come on? The voltmeter gauge shows it is charging at its normal rate.)
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Sunday, March 11th, 2012 AT 10:12 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Everything else ok? Charging ok?
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Sunday, March 11th, 2012 AT 10:19 PM
Tiny
SATURNTECH9
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I would have the battery tested also do you have a multimeter to do some testing.
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Sunday, March 11th, 2012 AT 10:20 PM
Tiny
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  • 7 POSTS
Yes, been driving it for a week with the battery light lit and it hasn't died on me yet.
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Sunday, March 11th, 2012 AT 10:21 PM
Tiny
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  • 7 POSTS
Yeah, since the battery is about seven years old, it's probably time for a new one. I'll have it checked out.
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Sunday, March 11th, 2012 AT 10:23 PM
Tiny
FIXITMR
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Check your ground straps
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Sunday, March 11th, 2012 AT 10:24 PM
Tiny
SATURNTECH9
  • MECHANIC
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Also have your alternator tested with the battery.
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Sunday, March 11th, 2012 AT 10:32 PM

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