I just got a 93 civic hatch and the heat doesn't work well. The fan only works on 3. And the heat comes out a little warm but it's not really all the warm at all. What do I do to get it to blow warm air? I need heat.
this is time consuming but these are what you check
Check for the following:
Clogged heater duct
Clogged blower outlet
Clogged heater valve
Faulty air mix door
Heater valve cable adjustment, (see page
Air mix control cable adjustment (see page
Faulty thermostat
Clogged evaporator
Frozen evaporator