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open the petcock drain. remove the radiator cap and fill the radiator with water, the fresh water will push out the old coolant and flush the system. Catch the old coolant inn a container as it is poison to animals.
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How do you flush the radiator on a 1990 Nissan 240sx?
there is a plug on the bottom of the radiator, pull it. what i do is take the whole thing out and you a garden hose and flush it out like that.
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you push the lever on the upper left side of the bowl
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Remove the radiator hoses from your 1990 Buick LeSabre radiator. Remove the radiator stabilizing arm retaining bolt. Remove the radiator retaining bolts. Reverse the process to install your new radiator.
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