1998 Cadillac Eldorado Owner's Manual - Page 256

If Steam Is Coming From Your Engine A CAUTION: Steam from an overheated engine can burn you badly, even if you just open the hood. Stay away if coming from the engine you see or hear steam from it. Just turn itoff and get everyone away from the vehicle until it cools down. Wait until there is no sign steam or coolant before of you open the hood. If you keep driving when your engine is overheated, the liquids in it can catch You or fire. others could be badly burned. Stop your engine if it overheats, and get out the vehicle until the of engine is cool. L 5-16