idle problem
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5.0 and 5.7 Discussion, idle problem in Cadillac Engine Technical Discussion; On my 96 fleetwood whenever i stop at a stop light it idles weird u all think it might be ...
  1. #1
    fleetwoodman12's Avatar
    fleetwoodman12 is offline Cadillac Owners Member
    Automobile(s): 96 fleetwood
    Join Date
    Feb 2006
    Location
    Hagerstown MD
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    34
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    idle problem

    On my 96 fleetwood whenever i stop at a stop light it idles weird u all think it might be the gas i have been runnin 89

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  3. #2
    N0DIH's Avatar
    N0DIH is offline Cadillac Owners Master
    Automobile(s): 94 Fleetwood Brougham
    Join Date
    Aug 2004
    Location
    Rockford, IL
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    47
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    Re: idle problem

    Mine recently is doing that, when I watch the O2 sensor readings, they are plumenting to 0.00x volts, indicating lean. Which is somewhat normal, but if prolonged and uncontrolled it will run rough.

    Did you get a bad tank of gas? I get mine at only 1-2 stations 95% of the time. The rare times I have got it elsewhere were the only times I had got bad gas. And that was only 1-2 times in the last several years. Once recently, and my wife filled up too, her Suburban ran so bad a Neon beat her up a hill, she was trying, he wasn't!!

    Any check engine codes?

  4. #3
    92lacfleetwood's Avatar
    92lacfleetwood is offline Cadillac Owners Member
    Join Date
    Dec 2005
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    6

    Re: idle problem

    I have a 92 cadillac fleetwood brougham 5.7 and the engine codes i get are 112 and 132, i have no clue what these are and how i would fix these problems because when i am stopped at a light there are few times that my vehicle runs rough.

  5. #4
    BCs71's Avatar
    BCs71 is offline Cadillac Owners Enthusiast
    Automobile(s): 1994 Cadillac Fleetwood Brougham (some show and some go!)
    Join Date
    Oct 2003
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    Chicagoland
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    Re: idle problem

    Quote Originally Posted by fleetwoodman12
    On my 96 fleetwood whenever i stop at a stop light it idles weird u all think it might be the gas i have been runnin 89
    If it only runs rough at a stoplight and you've gone through more than one or two fill-ups at the gas pump (preferably different gas stations as well) then I would guess that your EGR valve is on the way out or already failed.
    You should be experiencing a change in gas mileage and perhaps some stuttering when first getting on the gas (like leaving fdrom a stoplight).

    I've been through this in my Caprice before, and the check engine light (CEL) did NOT come on until about 3 weeks after the symptoms started. The code just verified to me the EGR was bad.

    Good luck

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