2001 Pontiac Firebird alternater

2001 PONTIAC FIREBIRD
59,000 MILES • V8 • 2WD • MANUAL
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TA7601
  • MEMBER
  • 1 POST
My alternater has been squeeling off and on. My gauge will say I'm only at 10v but when I pull over and check the battery it is around 13.9v Which one do i believe?
Apr 25, 2009 at 9:35 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Get the alternator load tested
Apr 25, 2009 at 10:16 PM
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