1997 Chevrolet Suburban Owner's Manual - Page 251

A CAUTION: Heater and radiatorhoses, and other engine parts, canbe very hot. Don't touch them. If you do, you can be burned. Don't run the engine if there is a leak. If you run the engine, it could lose all coolant. That could cause an engine fire, and you could be burned. Get any leak fixed beforeyou drive the vehicle. The coolant level should be at or above the COLD mark. If it isn't, you may have a leak in the radiator hoses, heater hoses, radiator, water pump or somewhere else in the cooling system. I NOTICE: Engine damage from running your engine without coolant isn't covered byyour warranty. If there seems to be no leak, start the engine again. See if the fan speed increases when idle speed is doubledby pushing the accelerator pedal down. If it doesn't, your vehicle needs service. Turn off the engine. 5-14