Lots of oil in plug wells
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V6: 3.0, 3.2 LA3, 3.6 LY7, 3.6 DI LLT Discussion, Lots of oil in plug wells in Cadillac Engine Technical Discussion; I'm trying to help my sons friend with this problem... his single mom was able to buy this car for ...
  1. #1
    OldRscl is offline Cadillac Owners Member
    Automobile(s): 1998 Catera
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    Oct 2009
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    Lots of oil in plug wells

    I'm trying to help my sons friend with this problem... his single mom was able to buy this car for him but now this problem has surfaced and they can't afford a mechanic... the spark plug wells are full of oil. It will start and idle but after a few minutes driving it dies. I've cleaned them out and tried it but it fills up quickly. I'm assuming there is a leak from the nearby valve? covers.
    Any help will really be appreciated! Thanks

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  3. #2
    CADMAN56 is offline Cadillac Owners Member
    Automobile(s): Cadillac
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    Re: Lots of oil in plug wells

    oldrscl-95% of the time it is the valve covers gaskets-any servive lights on when car dies ? connect scan tool and check for codes-numerous things can cause engine to die.good luck

  4. #3
    Chis2 is offline Cadillac Owners Member
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    Re: Lots of oil in plug wells

    Hi Everyone, Brian here from New Zealand, I've just joined up and spotted this enquire re oil in the spark plug wells and it's the same problem that I have, except I know what it is. The PCV system is blocked, but now I'm trying to find it cause it's way down there in the dark, so if anyone can direct me I'd sure appreciate it, thanks

  5. #4
    waco-brian's Avatar
    waco-brian is offline Cadillac Owners Fanatic
    Automobile(s): Catera 98 & 99
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    Waco,Texas
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    Re: Lots of oil in plug wells

    chis2 what kind of car is it?
    crankcase breather is right behind the right side head no easy to get to.i could help just did mine

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