where is this supposed to connect
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HT4100 4.1, 4.5, 4.9 Discussion, where is this supposed to connect in Cadillac Engine Technical Discussion; This should be the EGR solenoid. On the passenger side there are two nipples, one that goes to the EGR ...
  1. #1
    ehall's Avatar
    ehall is offline Cadillac Owners Connoisseur
    Automobile(s): 1985 Sedan DeVille
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    where is this supposed to connect

    This should be the EGR solenoid. On the passenger side there are two nipples, one that goes to the EGR valve, and another that is not connected to anything. The driver's side has a shared intake vacuum feed (it's tee'd with the heater control valve and brake booster). Is the unattached nipple supposed to be connected to anything or is it atmospheric dump port? There aren't any vacuum hoses anywhere around.


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  3. #2
    behind-bars is offline Cadillac Owners Connoisseur
    Automobile(s): 93 Sedan Deville 4.9L
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    Re: where is this supposed to connect

    I dont think it should be attached to anything, The egr solenoid on my 4.9 has two connections and a filter. I imagine that used to have the filter foam and it has just deteriorated. If you look at the picture i linked below you will see the one port covered with foam

    http://info.rockauto.com/getimage/ge.../VS25_FULL.jpg

  4. #3
    MrSeville4.9 is offline Cadillac Owners Fanatic
    Automobile(s): 1993 Cadillac Seville 4.9, 2004 Cadillac Escalade ESV 6.0
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    Re: where is this supposed to connect

    Its a small hose that connects there and goes to the left side(if your standing in front of the car) of the throttle body. I think that right, but ill have to look at my engine and check....

  5. #4
    awadecki is offline Cadillac Owners Enthusiast
    Automobile(s): 76 Eldo (54k), 76 Eldo (52k), 78 Eldo (9k), 85 Deville (43k)
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    Re: where is this supposed to connect

    no, ehall, your car is fine. that top nipple vents to open air. nothing is supposed to go there but a very small filter.

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