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International Automotive Technicians Network
Re: CLR and heater cores
Posted to Open Discussion Forum on 2/22/2023 4 Replies

I have unclogged several parallel flow heater cores using my HECAT. It is not 100%(close to it though), especially when a severely neglected vehicle pops in, but then again, even putting a new core or rad in those can bite you in the arse. There's likely more ... Login to read more.

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