Vacuum diagram of 1987 chevy 2.8 litre S-10 - 1987 Chevrolet S-10 Pickup

SOURCE: bought a 1987 chevy truck but most all of vacuum lines not connected

u didn't say what engine, but check out this site, I believe it will be very helpful as to what u are looking for-
go to 'autozone.com select year make, engine, etc, click on 'repair manual' then driveability and emissions control, then to 'vacuum', they have a bunch of diagrams that will keep u busy. If u have any trouble finding it, let me know.

SOURCE: I need a free manual for a 1977 C-10 Chevy truck

Try Here

SOURCE: emission vacuum hose routing 1987 corvette

There's are two stickers on the top of the radiator. There is one at the filler cap that shows the pulley and belt arrangement and the other one shows the routing of the emission hoses with charcoal canister.

SOURCE: i need a 1987 chevy S10 vacuum hose routing diagram

Go to Autozone.com, become member, will give you repair manual,location of parts,diagrams.

SOURCE: vacuum hose diagram for a 2001 Chevy Blazer

look on google i can fing everything there if you want email me with your emailaddres i will try to find it for you