...heater cores that get hot but the blender door directs air away from this core in the a/c mode when you want cool air from the evaporator. I'm not sure if there is a control valve which stops the ...
...i turn my heater on it blow out cold air instead of hot. the heater core isn't leaking. flush the cooling system, probably clogged. happened to me a bit ago with a 99 cherrokee. hope it helps
...heater core no leaks don't think it has had a flush yet replace any soft hoses. collapsed hoses cause water flow constriction .that increases temp fast to bleed air out of the system . if no air ...
...heater with the controls in the high temp. Then touch the inlet hose that will be hot then touch the outlet hose that should be hot also, if not hot then the core requires replacement or you can try ...
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