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Re: Vacaum (archive)
[ Follow Ups ] [ 5-series (E34) Message Board ] [ Msg. Board FAQ ]
Posted by howard on April 06, 1999 at 11:02:38:

In Reply to: Vacaum posted by ken on April 05, 1999 at 10:03:37:

Vacuum is negative pressure created in the intake manifold. It is caused by the pistons travelling downward in the cylinders. For the engine to run properly, all the intake air should be measured by passing through the air flow meter. If you have a vacuum leak, un-measured air will be introduced into the system causing poor running because the system will be out of balance.

Your car has many temperature sensors, which one are you referring to?

Howard

: What is a vacaum? and what happens when it leaks

: (Not Brake Vacaum)

: Where is the temperature sensor found?

: Car : 518i 1991 M40 Engine



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