1997 Pontiac Sunfire Owner's Manual - Page 270

Checking Coolant 'hrning the surgetank pressure cap when the engine and radiator are can allow steam and hot scalding liquids to blow out and you badly. burn Never turn the surge tank pressure cap even a little when the engine and radiator are hot. -- -- When your engine is cold, the coolant level should be at the FULL COLD mark. If the low coolant light comes on, it means you're low on engine coolant. The surge tankis located on the passenger's side of the engine compartment. m I See "Low Coolant Light" in the Index. 6-26