Mystery Vacuum hose
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5.0 and 5.7 Discussion, Mystery Vacuum hose in Cadillac Engine Technical Discussion; Hey guys. I'm not mechanically inclined by any means other than knowing how to change oil, coolant, trans fluid, etc. ...
  1. #1
    arivera is offline Cadillac Owners Fanatic
    Automobile(s): 1993 Cadillac Fleetwood
    Join Date
    Nov 2006
    Location
    Chicago
    Posts
    101

    Mystery Vacuum hose

    Hey guys.

    I'm not mechanically inclined by any means other than knowing how to change oil, coolant, trans fluid, etc. But i took some time the other day to get familiar with my beloved l05. After tightening some loose things here and there, I make my way to the back of the engine when i spot a spark plug jammed up a small vacuum hose. I followed the hose and it lead me to a small module just to the right of the dist. I tried taking the best pic with my camera phone. Hopefully you guys can figure out what i'm looking at exactly. The first pic shows where the vacuum line lead to. The second pic references where that is on the engine. Any help would be greatly appreciated. Even guesses!

    Thanks guys,

    Art
    Attached Images

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  3. #2
    ewill3rd is offline Cadillac Technician
    Automobile(s): none
    Join Date
    Nov 2005
    Location
    WOODBRIDGE, VA
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    46
    Posts
    11,062

    Re: Mystery Vacuum hose

    Yeah, I'd need better pics.
    What is the 8th digit of the VIN?
    I assume this is on the vehicle listed under your name, the '93 Fleetwood?

  4. #3
    kevm14 is offline Cadillac Owners Connoisseur
    Automobile(s): 05 Stealth Gray CTS-V
    Join Date
    May 2008
    Age
    33
    Posts
    1,315

    Re: Mystery Vacuum hose

    That is about where the EGR vacuum control solenoid is on the B-body L03/L05. Does it have two lines coming out of it, one going to the EGR valve?

  5. #4
    arivera is offline Cadillac Owners Fanatic
    Automobile(s): 1993 Cadillac Fleetwood
    Join Date
    Nov 2006
    Location
    Chicago
    Posts
    101
    Thread Starter

    Re: Mystery Vacuum hose

    Yes. Where does the other line go?

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