1991 astro vaccum and belt routing?

1991 astro vaccum and belt routing?

Postby boe402u [OP] » March 13th 2009, 3:38pm

I was wondering how I can find out what the belt and vaccum routing is on a 1991 astro van? My stickers came off from inder the hood.
Thank You.
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Re: 1991 astro vaccum and belt routing?

Postby Matrixx » March 13th 2009, 9:05pm

Hi boe402u

Welcome to the Forum

Here are some belt diagrams:
http://www.autozone.com/az/cds/en_us/09 ... oPages.htm

Here are some vacuum diagrams:
http://www.autozone.com/az/cds/en_us/09 ... oPages.htm

Hope this helps.:)
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Re: 1991 astro vaccum and belt routing?

Postby JAMIN » September 14th 2010, 3:47am

this link appears to be broken. Does anyone have the vaccuum schematics?
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Re: 1991 astro vaccum and belt routing?

Postby fast68 » September 14th 2010, 5:26am

vacuum schematics arent always same just because same engine and model and year.

different emissions levels and packages plus if built in 48 states or in cali or in canada all have different vacuum schematics

i would go to a junkyard and try to locate another vna your year with same three letter emissions digit code on the sticker,.

or in the SPID label in glovebox in the engine cover

the vacuum lines on these are pretyt basic though

not much to them.

cruise control
egr vacvuum solenoid
heater a/c vacuum line
pcv
most everything connects to or originates from an intake manifold vacuum source

i might have the sticker on the rad support of the 92 i just stripped, ill check and see
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Re: 1991 astro vaccum and belt routing?

Postby Lumpy » September 20th 2010, 3:39pm

JAMIN wrote:this link appears to be broken. Does anyone have the vaccuum schematics?



Image

Image

The upper image is busy and reduced. Sorry. The board won't seem to accept
images larger than 600 horizontal without clipping them.

As others have suggested, various individual vehicles will have slightly
different vacuum routings. Veh's built for cold climates, for example,
have a different PCV valve hose routing.


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Re: 1991 astro vaccum and belt routing?

Postby Phantom » September 20th 2010, 4:09pm

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Re: 1991 astro vaccum and belt routing?

Postby JAMIN » October 17th 2010, 10:12pm

thanks, the second pic was what I was lookink for. The other thing I was looking for was the check valve in front of the TBI going to the "black ball" under the heatercore. Engine runs well, just want to double check my vaccuum lines.
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