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Re: Heater core flushing
Posted to HVAC Forum on 1/13/2025 3 Replies

There is an old Honda Tsb from 2014 (Service Bulletin 14-063) It involves a pump that I run @ 1 hr. Never fails to clear it out. I use a citrus based cleaner from Mercedes but I assume the CLR will work just as well. I have the hoses only run into the bucket, ... Login to read more.

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