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The vacuum diagram is on a sticker located on the hood underside or on the front radiator support cover
You can find a Vacuum hoses diagram for gm diesel 6.5 at any department stor. They can be found at Sears or auto motor store. They are also available on Ebay for a bid.
There should be a diagram of the vacuum lines on the passenger side shock tower.
diagram from front vacuum motor to transfer case of 1993 Jeep Wrangler
go to chevythunder.com, they have exactly what you are looking for
Go to this link and select your motor/carburetor... http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152800cc478
similar to xf falcon
There's usually a sticker under the hood with one on it but if not, you'll have to buy a motor manual with one in it.
A diagram for a vacuum system of a 1976 440 Dodge motor home can found in its maintenance manual. It can also be found in its repair manual.
Vacuum hose diagram for 1959 chevy truck, wiper motor?
hook a vacuum gauge up to any of the rubber hoses that are coming out of the intake manifold, such as the brake booster....