You can find this schematic (and others) in the Chilton's manual for your truck.
97 trans am vacuum schematics
http://www.explorerforum.com/forums/showthread.php?t=169945
You can find the EGR Vacuum Solenoid for a 97 Ford Probe 2.0L at www.autopartswarehouse.com. You can also call them at 1-866-789-3624 or 1-801-214-2997.
At auto part stores you can buy a Hanes Manual for that truck. It will have a wiring schematic in the back...
your local library should have a repair manual with the schematice in it.
The Norinco reproduction of the Winchester 97 pump shotgun was designed by reverse engineering (aka copying) an original Winchester 97. Therefore drawings, schematics and instructions for the original should work for the reproduction. These are routinely available on eBay. At the time of this answer, 360004560026 was one such item.
Where are the vacuum hose located at on '97 Pontiac grand am? Where are the vacuum hose located at on '97 Pontiac grand am?
If you can, try ALLDATA. It will give you a really good diagram of the whole system.
It's possible to use your schematics to locate the sensor relay to find it, but if you are in a crash, and it is missing, your insurance will be very upset. Good luck
The procedure is 97-99% effective
Its on a placard under the hood. At least it is on my 97 truck. If not, go to autozone and look at the book.
both, front engages by vacuum, transfer case is electronicaly shifted