Thread: Extremely low vaccum in the intake manifold ?
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Old 07-07-2006, 10:27 AM
Duke2.6 Duke2.6 is offline
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Standard sea level pressure is 29.92" Hg., which is 760 mm, and actual or corrected sea level pressure in inches Hg. is a common part of weather reports.

Typical M103 idle vacuum (700 revs in neutral) should be about 15.5" Hg., which is 394 mm.

Automatics idling in Drive will show less vacuum.

Duke
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