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Vacuum lines *HELP*

js4x4

1/2 ton status
Joined
Jul 17, 2004
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Location
San Diego, CA
When I tore down and replaced my head gaskets, I failed to write down where the vacuum lines go. I tried to follow the sticker on the doghouse, and noticed its from an 84, carberated..I have TBI. The lines should be close, but following that diagram, the engine promptly stalled. I wish I knew someone else that has a blazer so I can just look and I'd have it. Anyone have some pics, or a diagram online? Its a 305 TBI, has all the smog items (california frowns on takin that stuff off) It runs, but I don't even have the vacuum advance hooked up. Thanks for any advice!
 
/forums/images/graemlins/thumb.gif I sat here and browsed thru 80+ postings and found a diagram more like mine, actually someone posted a msg that was more helpful >
>Uhhhh.
Line one off timed port on drivereside front of carb to Vac Advance.
Line 2 from port at base of carb front center to PCV.
Line 3 from constant port on passenger side of carb near choke to the Thermac in Air cleaner.
Line 4 Intake between carb and distributor goes up passenergside of fire wall and into cab for HVAC controls.
Line 5 back of carb bas to Brake vacuum Booster.
Line 6 (iff equiped) T off intake vac port where HVAC ties in to Cruise control.

So, problem fixed! /forums/images/graemlins/peace.gif
 

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