1993 Buick Riviera Owner's Manual - Page 200

When you decide it's safeto lift the hood, here's what you'll see: Coolant recovery tank Radiator pressure cap Electric engine fan An electric fan under the hood can start up even when the engine is not running and can injure you. Keep hands, clothing and tools away from any underhood electric fan. I If the coolant inside the coolant recovery tank is boiling, don't do anything else until it coals down. "FULL COLD." The coolant level should be at or above If it isn't, you may have a leak in the radiator hoses, heater hoses, radiator, water pump or somewhere in else the cooling system. 198