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How to clean auto radiator cooling system

First, to ensure engine in cooling State and flameout. removed radiator cover ensure engine is cool of; open radiator bottom of emissions plug, let cooling liquid into barrels in; closed emissions Plug and to radiator injection; open engine, open heater control system (such operation will open heater control valve), added cooling system clean agent, idling engine 30 minutes; off engine cooling 5 minutes, will radiator within liquid emptying; VI, closed emissions plug, Radiator water and let the engine idle 5 minutes. then 50/50 with water and antifreeze/coolant ethylene glycol compounds (formerly in use in cars that you want to use coolant).