Was wondering if someone could email me the vaccume diagram for a 97 lumina 3.1? gcmiracle@charter.net
The one from the service manual if possible!!

What specifically do you need to know? Most vacuum diagrams in service manuals don't explain where what goes, but just gives a general idea on how it -should- work (at least that's how I feel)

What specifically do you need to know? Most vacuum diagrams in service manuals don't explain where what goes, but just gives a general idea on how it -should- work (at least that's how I feel)
I'm actually trying to find out where everything runs from the vaccume switch mounted under the coil pack .

The EVAP purge solenoid has two ports, the rearward goes to the EVAP vac switch which then continues on beyond to the back of the vehicle. The frontmost port runs to the top of the TB, then goes to the PCV valve. If you still need a diagram I can scan one in from my 1999 service manual.

The EVAP purge solenoid has two ports, the rearward goes to the EVAP vac switch which then continues on beyond to the back of the vehicle. The frontmost port runs to the top of the TB, then goes to the PCV valve. If you still need a diagram I can scan one in from my 1999 service manual.
If possible could i get it cause I need to replace parts of the system and would like a good reference as I start to resnake the beast.

thanks,
Don

http://www.5in.net/vac.gif
image © 1997 General Motors

1 To EVAP Canister
2 EVAP Vacuum Switch
3 EVAP Canister Purge Valve
4 To Rocker Arm Cover
5 Air Intake Duct
6 Throttle Body
7 PCV Valve
8 Fuel Pressure Regulator
9 To Transaxle
10 Intake Manifold
11 To Accessory
12 To Vacuum Brake Booster
13 MAP Sensor