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Vacuum Diagram

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Old 04-15-2002, 05:19 PM
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MRZ28HO
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Default Vacuum Diagram

Does anyone know where I can get a 1978 L48 (auto, Low alt.) specific vacuum diagram for the emissions hoses? We have a 1978 GM Service Manual, but the vacuum ports shown on the carb diagram do not match our Quadrajet. :confused: I ordered an emission hose kit from Eckler's (specific to our car) and it came with alot of useless hose. Some not long enough (for the charcoal canister) some not the correct diameter, and only ONE Tee fitting. And worse of all, no diagram to show how it show all be routed. I did a search on the 'net, but no one has pictures of (their 1978 or similar) engine bays. :( Can anyone of you guys that has a federal L48 auto, low alt. post a close up picture of your vacuum diagram or a shot of your engine bay with the air cleaner removed. Only requirement is that the vehicle must be as close as possible to stock (are there any left? :) ). Thanks! :cool:
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Old 04-15-2002, 06:08 PM
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Default Re: Vacuum Diagram (lbell101)

You are the man!
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Old 06-22-2011, 05:28 PM
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Will94ZR1
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what about a 94 lt1 vacuum diagram
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Old 06-22-2011, 05:39 PM
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