The cooling system of a 1997 Oldsmobile Achieva SL consists of a radiator, water pump, thermostat, and coolant passages within the engine. Coolant circulates from the engine to the radiator, where it dissipates heat. The water pump, driven by the engine, ensures the coolant flows through the system. The thermostat regulates the coolant temperature by controlling its flow based on engine heat levels.
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