vacuum lines

  1. G

    Vacuum Line Routing

    Hope everyone is doing well. So, I have a vacuum diagram for my 84 MC. I'm trying to confirm the routing. Per the picture, is the top port of the EFE/TVS valve/sensor mating via a t-connector to the "L" hose from the carb before they connect through the merged single line to the AIR management...
  2. studer

    CUTLASS Issues with HVAC System - 1982 Cutlass Supreme

    Hey everyone, been lurking on this forum and using it as a resource as I work on my first gbody that I recently bought, decided to join to request some help. I'm not new to working on vehicles, but I haven't owned a carbed vehicle before, nor have I owned anything older than 1989. My Cutlass is...
  3. S

    Help with emissions control decal for a new project

    Hello, I recently acquired a new and exciting project! It's a 1981 Buick Regal Limited. Usually when one of these ends up in my garage I'm stealing the 3.8 to put in an old Jeep but this time I'm going to restore the car instead. I've ripped out the dash and fixed 95% of the wiring. Hunting...
  4. grean

    Vacuum Line Help

    i need some help Clarifying a few vacuum lines that where not connected to anything. car is giving a Code 34 - MAP sensor circuit error (signal low indicating high vacuum) so. theirs that. -------------------------- ------------------------------------------...
  5. CaliWagon83

    Underhood education, 231 CCC - What are these?

    Hi guys. As I'm finally digging in to my Regal, I'm discovering the wonders of early '80s technology. As we all know, the CCCs are a mess of sensors, wires and vacuum lines. So I have a question on a few of these. My ultimate goal is to get all the vacuum lines correctly connected. We've already...
  6. Street Sweeper22

    Vacuum lines and wiring

    Does anybody have some good pics of their engine compartment? I have a 84 Regal with the 3.8 and AC. My smog pump is missing and the wiring is a disaster. I know there are schematics out there but my brain doesn’t work that way. Any help would be appreciated.

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