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You can find heater vacuum line diagrams for your Chevy van in most Chevrolet service manuals. The service manuals can be found at your local library.
try www.autozone.com
You may be able to find the diagram on the Chevy site. You can also find diagrams in the back of the Haynes Repair Manual.
All of the different wiring diagrams are in the back of the haynes repair manuals made for astro vans. you can get them at any autozone or advance
Engine diagrams can be used as guides when it comes times to making necessary changes. An engine diagram to a 1999 Chevy Astro Van can be found in its maintenance and repair manuals.
get yourself a HAYNES shop manual haynes does not have vacume diagrams have the book for a 1993 and no vacume diagrams need 1 myself
where can i find wiring diagrams for a 1984 chevy scottsdale, and a1987 wrangler pickup?
probably under the hood
When it is working, go to autozone.com and they have diagrams. Or go to MOTORLIT.COM. 4bbl A/T Calif Emissions No, it does not. Please be accurate on your answers.
Buy a repair manual like Chilton's they have wiring and vacuum diagrams.
Wiring scamatics 65 Chevy dash
The service manual for your car (including a Hayne's) will have the diagrams. The vacuum diagrams will vary greatly depending on what engine/carburetor the car has. In the related links section, there are links to the various vacuum diagrams for this vehicle.