Yes, they should be, if you want heat during the colder months as well.I know I’m no trippin Aren’t hoses suppse to be connected ? Anyone ? 87 regal
For laughs anyone ever have there corr clog up with rust stop leak ect and actually pour toilet bowl cleaner into the core with hoses off let it sit then flush it out with water befor ressembleThey did say the heater core was no good .
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