Houston, we have a problem... - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 08-19-2006, 02:49 PM   #11
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The first thing I suggest for you is to have the alternator plugged to see the amps actual reading how it is charging then search for the ground wire to the block to see if it is loose... If the meter goes crazy when you touch this...bingo! you have a poor ground contact.
very common on our cars due to aging the wiring system is getting loose or corrosion is causing bad contact to the mass.
try that and let me know.
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Old 08-20-2006, 11:26 PM   #12
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Timothy's Buick is on a distinguished road

Repalced my alternator a year ago for the same symptons as you describe.

Fixed the problem.
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