Question about 1991 Chevrolet Suburban

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I need a vacuum line routing diagram for a 1985 GMC Suburban. 2wd, with a/c, 5.7liter (350), 4bbl carb, Can anyone help

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  • truck_parts Oct 17, 2008

    84 k-20 with a 305. oil/gunk build-up on side of block ignited @ the end of the winter while plowing, and burned most of the vacuum lines. i've searched all spring/summer trying to find this diagram, but no luck. please don't mention the rad cradle for the factory one, it's been replaced (and the label wasn't legible anyways). can ANYONE supply a link for the actual diagram? not looking for suggestions on where i (we) could find it, i want a factual link that someone has actually seen it on.

    i know this asks alot, bui've tried to track down alot of "leads" regarding this, so now i want facts (please).

    thanks to all that can help.

  • Anonymous Jan 02, 2009

    i have a 86 2.5 liter , i dont know the vacuum routing
    and i with i knew where fuel pump prime wire terminates
    within the vehicle.

  • Anonymous Mar 14, 2014

    vacuum line routing 1972 nova 350

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Thanks fasteddie383, i had already checked with the library (actually, i've checked three different LARGE libraries, no luck!) i've even had two different friend's that i went to school with check around @ the two GM dealership's where they work-one's the service manager, the other's the shop foreman-no luck! i thought about looking @ those sites that charge a fee for a year's worth of access, but they have no guarentee i can find what i'm looking for, and no refunds.
as for our "guest" on Jan.02........"i have a 86 2.5 liter , i dont know the vacuum routing and i with i knew where fuel pump prime wire terminates within the vehicle. "????? what the hell?......first you're talking about a 2.5 (4 cylinder) that's in (eithier) a S-series Blazer/Jimmy, or p/u............did you not see that it's for a Suburban with a 350. different truck and different engine equals different diagram, but thanks anyways.

Posted on Feb 26, 2009

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Believe it or not your local library will have the vacuum diagrams in mitchell books or some book similar. if not find a local repair shop with all data and they will be able to look it up for you and print it. if that fails you can access all data on the internet and get access for 1 car for i think like $12 dollars. its good for a year so its well worth it.

Posted on Feb 26, 2009

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zjlimited_1046.jpg

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zjlimited_1047.jpg

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