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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Help me in Past Cadillac Vehicle Discussion; Can anyone please tell Hollywood where the hell is the oxygen sensor located on his 90 Deville? He got so ...
  1. #1
    HollywoodHicks1's Avatar
    HollywoodHicks1 is offline Cadillac Owners Fanatic
    Automobile(s): 1998 Cadillac DeVille
    Join Date
    Sep 2003
    Location
    Cleveland, Ohio
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    247

    Help me

    Can anyone please tell Hollywood where the hell is the oxygen sensor located on his 90 Deville? He got so POed yesterday looking for it, so he just went to sleep. Help a brother out please!

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  3. #2
    CadillacJack76's Avatar
    CadillacJack76 is offline Cadillac Owners Fanatic
    Automobile(s): 02 eldo collectors series, 98 eldo, 97 deville, 96+94 SLS,
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    Oct 2003
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    Re: Help me

    Ok, its been a while but I beleive it is located on the engine pipe off of the back exhaust manifold and is a pain in the ass to get to, at least that is where it is on my 93, I noticed when I had it on the lift with my 2 foot extension replacing my back sparkplugs!!

    Jack

  4. #3
    HollywoodHicks1's Avatar
    HollywoodHicks1 is offline Cadillac Owners Fanatic
    Automobile(s): 1998 Cadillac DeVille
    Join Date
    Sep 2003
    Location
    Cleveland, Ohio
    Posts
    247

    Re: Help me

    Aww man. I wanted to try and get to it myself. Since you said that it is difficult, I guess that I will have some other person do it for me. One question, do you have to get under the car to get at it or can you do it from under the hood?

  5. #4
    Slick Black Cadillac's Avatar
    Slick Black Cadillac is offline Cadillac Owners Fanatic
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    Aug 2003
    Location
    Oshkosh, WI
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    137

    O2 Sensor

    You can replace it from under the hood, it isn't that hard. If you look dead center down the back of the fire wall you can see it sitting in the top of the exhaust manifold. You need an extention, elbow/knuckle joint, and a oxygen sensor socket (you can borrow one free from Auto Zone). Unplug it, unscrew it, and put the new one in...Done

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