Hey Steve==Right now the AUTOZONE.COM site is experiencing problems but they should have them cured shortly and you can go there and find them. GoodluckJoe
if you go to autozone.com they havve repair manuals with the vacuum lines you just pick your car and engine and check for the emmissons area
m, and Find .
If the distance between the lines is constant then they are parallel.
Having searched the concordance of the King James Version of the bible, I can find no reference to the word Vacuum.
Assuming that you mean diagonal (not diagnol) lines, they are straight lines that join non-adjacent vertices in a polygon or polyhedron.
USUALLY THEY ARE LOCATED ON THE RADIATOR SHROUD FAN COVER. ALSO YOU CAN FIND THEM IN MOST INEXPENSIVE SERVICE MANUALS.
A diagram of the vacuum lines on a 2006 Chevy Silverado can be find in the service manual. It outlines their location and specific function within the vehicle.
You would find the HVAC vacuum line routing in a shop manual for that vehicle.
97 trans am vacuum schematics
You can find a 1993 Ford van vacuum schematics for a 5.0 engine in the car's owner's manual. You can also check with different auto stores.
nostalgiair.com
buy a Haynes or Chiltin Repair manual
go to chevythunder.com, they have exactly what you are looking for
You can find the 1986 Chevrolet vacuum line diagram at most Chevrolet dealerships. The vacuum line diagram can also be found at most auto-parts stores.
There is a sticker under the hood somewhere that will show you where thay go.
You can find this schematic (and others) in the Chilton's manual for your truck.
http://www.explorerforum.com/forums/showthread.php?t=169945