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Vacuum reading

Old 10-15-2010, 11:46 PM
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Default Vacuum reading

What is considered a "Normal" vacuum reading on the '97 engine? The gauge in my car reads about -12(in/hg?) at idle, my dad's ms6 reads about -22.
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Old 10-16-2010, 12:28 AM
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You either have a vac. leak or a broken gauge. IIRC, sea level you should be around -20 or so.. At my altitude (7,000+) mine reads -18.
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Old 10-16-2010, 11:23 AM
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Mine's -20 at about 650 feet above sea level. -12 sounds pretty low unless you live on Mount Everest.

I concur, check for a leak.
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Old 10-16-2010, 11:25 AM
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-24 here about 1 ft above sea level
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Old 10-16-2010, 02:38 PM
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-20 on mine...
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Old 10-16-2010, 07:52 PM
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20-25 on mine. Try swapping meters between cars (if you can easily do so).
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