>Is there any place where I can go online to view vacuum lines on a 1985
>Pontiac 6000 le if I hook up the line from the heater to a T the check
>engine light comes on without it hook up heater don't work right how can I
>find out what is wrong with it.
Under the hood of the car there should be a sticker with a vacuum line diagram. Usually its on the radiator support or in a few cases on the air cleaner assembly.
Failing that, try going to your local library. They have factory service manuals for many vehicles.