Question about 1998 Cadillac Seville

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Losing coolant 1998 sts northstar after about 30 minuets running it around the temp gauge moves up to H and i am losing coolant , there is no white smoke , and the exaust does noy smell sweet . pleease help

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  • eric forbes
    eric forbes May 27, 2008

    THE COOLANT CONTAINER IS SOUND AND THE RADIATOR IS NOT LEAKING

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It's usually the water pump...driver side just under the cam driven belt. If you let your car get too hot you will ruin it's aluminum engine.

Posted on Oct 01, 2008

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Please check the radiator it may be leaking or there may be hole in the coolant container or the sensor is defective get it checked ..................................

Posted on May 27, 2008

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1999 Cadillac STS Overheating


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White smoke


The smoke must come from a coolant leak close to the radiator, or a fin crack in the radiator itself. Check all hoses and clamps, idle hot and look for smoke. You may have a heater core corrosion issue, watch close for coolant leaks on the floor mats inside, all of this may be connected and look for leaks where you park. Just a small amount can produce smoke, open the hood when it smokes and look.

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Is the temp gauge high?Does the car blow white smoke?Check the oil and see if you have antifreeze/water in the oil.You may have a blown head gasket.Im assuming you have a norhtstar motor.

May 27, 2008 | 1998 Cadillac Seville

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