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Will flush hurt radiator if not removed?

Updated: 10/19/2022
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16y ago

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Most won't in the short term. If anything I would be concerned with heater core damage. Some cores are a days work to replace. At least drain the coolant and fill it with water, run it till hot, let it cool so you don't burn yourself and drain it again or pay someone the $50.00 to flush it. If there are any weak (corroded) areas of the heating/cooling system they could have a quicker failure.

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16y ago
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Q: Will flush hurt radiator if not removed?
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