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Old 10-10-2014, 03:44 PM   #1
dhamilton62
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Join Date: Apr 2014
Location: Oakland, Ca.
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Cooling system flush

Quick question, what do you guys recommend when installing a new radiator. I want to flush the cooling system and heater core but don't really care about flushing the old radiator since it's getting replaced. Should I just flush the cooling system with the old radiator still in or can I just drain the system and run a hose to the upper radiator hose and flush the motor that way? Thanks.
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Old 10-10-2014, 05:06 PM   #2
dougf
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Location: Fort Campbell, KY
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Re: Cooling system flush

I would flush with the old radiator until the water was clear, then I would drain, install new radiator, fill with 50/50 antifreeze and water. My thought process is I wouldnt want any old stuff from the block coming into my new radiator, so get everything clean prior to installing the new one. Good luck.
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