well it shouldn't take no more than half hour so if your getting charged an hour than go somewhere else.
It has a vacuum leak somewhere.
Check all vacuum lines under hood and dash - check vacuum operated motors-- Get a hand held vacuum pump might make job easier
Vacuum leak in a/c door control system . Look for vacuum leak under the hood.
A Standard Atmospheric pressure excerts a force on a mercury filled glass tube with one end closed to make the metal rise 29.92 inches. In a perfect vacuum environment, theoreticaly, there should be no rise on the column of mercury; answer is zero inches.
It's probably not going to be a cable, rather, it will be operated by vacuum, and you need to go to a car parts store, and get a repair manual for your car. They cost about $16.00 Or, go to a Public Library.
Excellent directions on how to install a central vacuum system can be found in detail at the central vacuum store under "guides" for installation. Central vacuums are easy to install with this video.
Could be a leaking vacuum line or with the pcv valve. It is possible that the trannsmission clutch packs arent dissengaging properly causing it to stall. PCV valve is a likely culpret with idle and stalling issues. Start there first.
The planet Mercury has almost no atmosphere, it's essentially a vacuum.
vacuum is measured in pressure. To get a vacuum you need a negative pressure. that would be inches of mercury hg
Pressure is often measured in inches of mercury when describing barometric pressure in weather reports. This term is also known as "inches of mercury vacuum".
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Which vacuum diagram The Underhood for the engine or the vacuum for the interior /AC system?