1995 GMC Safari Owner's Manual - Page 185

When you decide it's safe to lift the hooa, nere's what you'll see: A. Coolant recovery tank B. Radiator pressure cap C. Engine fan If the coolant inside the coolant recovery tank is boiling, don't do anything else until it cools down. The coolant level should be atADD. 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 by your warranty. If there seems to be no leak, start the engine again. See if the fan speed increases when idle speed is doubled by pushing the accelerator pedal down. If it doesn't, your vehicle needs service. Turn off theengine. 5-15