Autozone has a massive list of vacuum diagrams for lots of vehicles. Goto autozone-->repair info-->repair guides
Find your Year/Make/Modal
where dose the vacuum under the battery come from
Check the gasket between the throttle body and the intake manifold. It may be blown out and creating a large vacuum leak causing the fast idle.
Mazdatruckin.com has a schematic for the B2600i vacuum lines in their tech section, it includes 4wd and cruise control devices. See the attached links below.
You can find a diagram for the vacuum system in a 1995 Blazer 4x4 will be located in the Blazer service manual. The manual can be purchased in most auto parts.
Haynes repair manuals have good vacuum diagrams
It does not have one.
no
The 2001 Chevy Blazer vacuum switch solenoid can be found on the firewall in the engine compartment. The vacuum switch solenoid will be on the passenger side of the firewall.
You can find a detailed vacuum hose schematic for a 1984 Oldsmobile Cutlass Supreme in the car's owner's manual. You can also check with local auto stores.
If the vacuum line diagram is not on a decal under the hood, or, if you don't know anyone with a similar vehicle that you can compare with, try your local public library's reference section on vehicle repair. Reference books are not available for checkout, but you can make copies to take home with you for reference.
Vacuum pump? Is this a diesel?
Need to know the location of the vacuum leak in order to answer this.