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Voltage regulator is located behind the battery in the inner left (driver's side) panel, in the front part. You must remove the battery in order to reach the regulator. Use a quality replacement part or your eec computer may go toast. Voltage should read aprox. 12V with engine off, and about 15V with engine running. Good luck fella.

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โˆ™ 2015-07-16 18:16:37
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Q: How do you replace the voltage regulator in a 1990 Mercury Sable?
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