1997 Saturn SL2 battery problems?

1997 SATURN SL2
15,000 MILES • 4 CYL • FWD • AUTOMATIC
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WRENCHERGUY
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  • 1 POST
i replaced alternator because diodes were bad,charged battery,car started fine.drove to advance auto parts,had car tested,alternator,starter,battery,and current/amp draw .02 all ok.battery discharged overnight.battery is 3 years old.could the bad alternator have damaged battery cells but let the battery hold a good charge for the test and possibly fooled the testing equipment?
Sep 18, 2009 at 10:06 PM
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SATURNTECH9
  • ✓ASE Certified Mechanic
  • 30,869 POSTS
  • ASE Certified Mechanic
yes u could have a bad battery that tests good but just wont hold a charge over night and its 3yrs old so the alternator could have been the last straw for the battery.hope this helps let me know how it goes.
louie
Oct 8, 2009 at 5:28 PM
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