Case half leaks

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Cadillac Seville / Cadillac Eldorado Forum Discussion, Case half leaks in Past Cadillac Vehicle Discussion; I know of a '94 STS owner who has been battling oil leak problems. I have heard of the block ...
  1. #1
    dave nygren is offline Cadillac Owners Member
    Join Date
    May 2003

    Case half leaks

    I know of a '94 STS owner who has been battling oil leak problems. I have heard of the block leak problem, but can't find good detailed info. Any info on the history of the problem would be great. Has anyone gotten GM to help with the repair $'s out of warranty?

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  3. #2
    Logandiagnostic's Avatar
    Logandiagnostic is offline Cadillac Owners Connoisseur
    Automobile(s): 2001 DTS, 2005 Mustang GT, 2010 MINI S
    Join Date
    Feb 2003
    Franklin, TN

    See... has a set of pictures of the job being done on a Olds 4.0. Basically the same engine as the Northstar. See the site and look under the 'how to' section.


  4. #3
    elwesso's Avatar
    elwesso is offline Cadillac Owners Master
    Automobile(s): 2005 CTS-V, 1994 Infiniti Q45
    Join Date
    Jan 2003
    You wont get any help from GM for out of warranty...... Especially if the car uses less than 1qt every 2kmiles..... How much oil does it use???

    FYI= people sometimes have reduced leaks if they add one less qt at an oil change...... That is fine on the engine, but you would have to be sure to monitor the level carefully....

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