1991 Buick Regal Battery Keeps Dying

Tiny
SIEBFAM
  • MEMBER
  • 1991 BUICK REGAL
  • V8
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
I have had two batteries installed this year. Alternator is producing fine, new cables, but I believe something shorting out battery to causing it to go dead in about two days time, if it's not driven. Any suggestions?
Thursday, July 9th, 2009 AT 7:03 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

You need to do a current draw test, place an Amp meter between the battery pos & the cable, check with key out & doors closed, check current draw, if above about.2 amps start pulling fuses and check for which circuit is drawing, also disconnect the alternator as well as a faulty diode will cause this without affecting the charge rate to much, start here.

Mark (mhpautos)
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Thursday, July 9th, 2009 AT 8:14 PM

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