Car Problem Reports

Cadillac Catera Coolant and Oil Leaks

Cadillac Catera Problem
38 Reports
Me Too

Model Years Affected: 1997, 1998, 1999, 2000, 2001

Engine Affected: 3.0L V6

Average Mileage: 100,508 mi (33,000 mi - 171,000 mi)


The Catera often experiences oil leaks from the oil cooler and/or valve cover gasket. The thermostat seal and/or the water pump may develop a coolant leak.

  • Visitor, , 3.0L V6, 102,000 mi

    my car has oil in coolant reservoir but does not misfire, just took it to the mechanic to check it out.

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  • caterainohio, , 3.0L V6, 123,000 mi

    All at one time radiator cracked on upper drivers side,replaced with new one,oil cooler leaking and replaced with new one,heater control valve was leaking and replaced with new one,thermostat stuck shut had to replace.replaced intake gaskets etc.Now the car runs rough engine shakes and wont idle correctly.any ideas anyone...help,,chrisandreneesmith@hotmail.com if you have any answers to my new problem..Also went for oil change a year ago once they lifted the car on the rack we heard sounds of something hitting the concrete,both back springs had busted and fell out so i replaced them.replaced relay that controls the radio..replace both front tie rod stabilizers.i think thats what they are called,but they are bad again after a year..car had 4 wheel alignment and still goes thru tires fast so i have replaced all 4 of them twice in the last 3 years.. what a money pit..i think Cadillac needs to pay us to keep these cars up and running since it is their car that has so many issues..

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  • Visitor, , 3.0L V6, 102,450 mi

    Oil comes into coolant reservoir

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  • joetex57, , 3.0L V6, 62,500 mi

    replace heater bypass vale leaking antifreeze, replace head casket leaking oil, replace oxygen sensor bank 1...yes it happen to me too..

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  • Visitor, , 3.0L V6, 90,000 mi

    bought the car , week later, engine light came on, replaced oil cooler and antifreeze still mixed with motor, currently replacing heAD GASKETS/ what a money pit

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  • Visitor, , 3.0L V6, 89,000 mi

    oil in water coolant reservoir.

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  • Visitor, , 3.0L V6, 113,000 mi

    oil light comes on when hot out. coolent light is always on even when its full!

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  • Visitor, , 3.0L V6, 95,500 mi

    oil leak's it seem that it's not circlulating cause I see a pluddle of oil inside the engine via the spark plug. then it shutting down

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  • Visitor, , 3.0L V6, 165,000 mi

    Valve gasket needs to be replaced, leaking oil. Replaced the radiator at 100k miles becuase of leakage.

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  • Visitor, , 3.0L V6, 75,000 mi

    smoke coming from both sides of the hood when car was warm.. i had the cover gaskets and oil cooler replaced for $1600...

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