Low coolant level could do that. Could also be a bad blend door actuator. I would check coolant level first, and that you have coolant flowing to the heater core. A blown head gasket would be causing you other problems and not just lack of heat from heater core. A bad valve cover gasket would not affect the heater core.
So will a bad head gasket or a bad valve cover gasket make the heater not blow hot air?
2001 Honda Civic LX
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Maintenance & Repair
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Maintenance & Repair
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I own a 2016 Honda Civic ex, right close to 36,000 miles the air conditioning started blowing hot , and Honda knew about the issue with the cars coming out of the factory, why are not being recall...
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I have a 1999 Honda Civic. Mechanically the car is perfect but the heater doesnt work. It blows air just fine but it'll be comd air. I had the thermostat changed and filled the antifreeze and it g...
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Maintenance & Repair
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