- posted
18 years ago
85 Mustang GT batteries keep blowing??
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- posted
18 years ago
An alternator is capable of producing more voltage than your battery is capable of handing. The regulator works by limiting the output. The last time my brushes went the problem manifested itself by maxing out the voltmeter. Another place to look is at the alternator sense line, if it is not hooked up correctly it could be signaling for max output.
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18 years ago
Too much voltage. Check your charging system. Around here, Autozone and Pep Boys will do it for free.
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18 years ago
Thanks!
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18 years ago
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18 years ago
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- posted
18 years ago
Since you don't have an internally regulated alternator, ignore my previous post. Like the man said, remove the regulator and have it tested. You can also perform a down and dirty test yourself by measuring the voltage from the positive terminal of the battery to ground. Have someone rev the engine for you while you look at the voltmeter, output should remain constant at around 14 volts. If the voltage changes radically or is just plain too high then your regulator is suspect. If the regulator checks good then we are back to the possibly of a wiring problem.