Heater Cores and Blower Fans
Mazda Protege
Car Heaters
VW Sharan

Why would the heater core be hot going in but cold coming out on a 1993 Mazda Protege?

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2011-10-18 21:11:23
2011-10-18 21:11:23

Most likely a plugged core. You can try flushing it, but you may end up replacing it.

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