Question about Cadillac DeVille

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Just bought car 94 deville 4.6 northstar 58k miles ..high temp engine coolant ...engine hot ...then engine shuts down ...new water pump & thermostat,sensors was replaced by previous owner..i checked the oil..no water..but checked the coolant some kind of oil not sure if it is tranny oil? looks kind of pink but maybe its similar color of coolant ..but definately milky..any ideas ? thanks for the help

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  • Tommy Aug 15, 2008

    i dont thinks its motor oil ...i really thinks its transmission oil..there is no signs of oil on the dip stick at all ..i am leaning towards the radiator is poss cracked ..and has clogged up the radiator and there probably no circulation ???

  • chanfunk Aug 20, 2008

    100k miles, had same warnings after sitting and waiting on long train with air on, then the radiator-empty plug blew out and stripped the threads. Don't know why it overheated. Shop wants to replace radiator, hoses, clamps, thermo to tune of $700. Suspect this is just start of our problems...considering walikng away from this car.

  • ehc155a Oct 31, 2008

    se calienta, se le cambioi el telmostato, pienso cambiarla las mangas

  • Anonymous Mar 16, 2014

    why does my 199 northstar deville say "AC HOT/shut engine off"?

  • Anonymous Mar 25, 2014

    car shakes engine light on milky color in engine

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  • 2,920 Answers

I would say possible head gasket seeping into radiator...

Posted on Aug 15, 2008

  • Ronnie Houston Aug 15, 2008

    if there were a crak in the radiator you would know....check the transmission coolant lines to be sure but ytans fluid would not clog the radiator nor make the car run hot

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