91 420 sel- new alt, should I replace?

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91 420 sel- new alt, should I replace?

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11-01-2007, 08:24 PM

Cigar Havana Cigar Havana is offline

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Join Date: Jan 2003

Location: London Ontario Canada

Posts: 382

Check voltage

Lots of other posts address how to check an alternator.

What is the voltage at the battery, engine off?

What is the voltage at the battery with the engine on and running?

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1989 420 SEL

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