Thread: Vaccum Gauge
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Old 08-26-2021, 08:45 PM   #4
JoeCB
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Join Date: Nov 2018
Location: Farmington MI
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Default Re: Vaccum Gauge

I had a 1979 Cadillac Seville, that had "fuel economy" lights in the instrument panel. Two little lights, orange and green. They were simply wired to a vacuum switch. High vacuum > green light. Low vacuum > orange light. For a driver that has a heavy foot, they were helpful.

Joe B
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