Coolant burning in oil
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Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, Coolant burning in oil in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; New guy here... Recently purchased a 2003 CTS used. There is a white film under the oil fill cap (coolant ...
  1. #1
    scott_c83 is offline Cadillac Owners Member
    Automobile(s): 2003 CTS
    Join Date
    Apr 2013
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    Coolant burning in oil

    New guy here... Recently purchased a 2003 CTS used. There is a white film under the oil fill cap (coolant where it is not supposed to be).

    I am currently a member on another forum site for Pontiac Grand Am's. This is a common issue for those types of engines (60 degree V6's) of being the LIM Gasket (until they upgraded their gaskets from the factory in late 2004/2005) failure as seen here: http://www.floridagmclub.com/f59/lim...faq-3400-a-23/

    I was wondering if anyone knows a definite cause for this in the 54 degree V6 motors.

    Thanks for looking and hope to get a few good replies.

    In the meantime I am going to keep trying to look for an answer.

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  3. #2
    Calgary03's Avatar
    Calgary03 is offline Cadillac Owners Member
    Automobile(s): 03 Cts Sport Luxury
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    Feb 2013
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    Calgary Canada
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    Oil cooler, it's a wierd set up but trust me. Done it before when I had the same problem as many others with the 3.2 in the 2003. Happy wrenching

  4. #3
    arogers260's Avatar
    arogers260 is offline Cadillac Owners Enthusiast
    Automobile(s): 2003 CTS Luxury/Sport package
    Join Date
    Mar 2012
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    Indiana
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    Quote Originally Posted by scott_c83
    New guy here... Recently purchased a 2003 CTS used. There is a white film under the oil fill cap (coolant where it is not supposed to be).

    I am currently a member on another forum site for Pontiac Grand Am's. This is a common issue for those types of engines (60 degree V6's) of being the LIM Gasket (until they upgraded their gaskets from the factory in late 2004/2005) failure as seen here: http://www.floridagmclub.com/f59/lim...faq-3400-a-23/

    I was wondering if anyone knows a definite cause for this in the 54 degree V6 motors.

    Thanks for looking and hope to get a few good replies.

    In the meantime I am going to keep trying to look for an answer.
    My gf has an 01 grand am gt, so I know what you mean, I've had to replace her lim gaskets plus others and heater core. I will be replacing my oil cooler and thermostat w/housing hopefully this weekend depending on if I'm working ot this week or not. Ill take some pics to try and help out others, and possibly a write up.

  5. #4
    scott_c83 is offline Cadillac Owners Member
    Automobile(s): 2003 CTS
    Join Date
    Apr 2013
    Age
    31
    Posts
    2

    Re: Coolant burning in oil

    Thanks for the replies... Going to definitely be doing some wrenching... Anything else I should replace while I am in there?

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