1998 Cadillac Catera Owner's Manual - Page 230

If it isn't, you may have a leak in the radiator hoses, heater hoses, radiator, water pumpor somewhere elsein the cooling system. An electric engine cooling fan under hood can the start upeven when the engineis not running and can injureyou. Keep hands, clothing and tools away from any underhood electric fan. If the coolant inside the coolant surge tank boiling, is don't do anything else until it cools down. Heater and radiator hoses, and other engine parts, canbe veryhot. Don't touch them. If you do, you can be burned. Don't run the engine there is a leak. If you run if the engine, it could lose all coolant.That could cause an engine fire, and could be burned. you Get any leak fixed before you drive thevehicle. I NOTICE: I I Engine damage from running your engine without coolantisn't covered by your warranty. The coolant level shouldbe at or slightly above the KALTKOLD line (seam). If there seems to be no leak, with the engine on, check to see if the electric engine cooling are running. If the fans engine is overheating, both fans should running. If be they aren't, your vehicle needs service.