1998 Honda Civic heater, ac and defroster dont work

1998 HONDA CIVIC
202,400 MILES • 4 CYL • FWD • AUTOMATIC
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SKELLY910
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  • 1 POST
My heat, ac and defroster only work intermittently. If i have the flow set so it pulls air in from the outside it will occassionally come on, but not always. I have replaced the radiator hose and the thermostat. What else should I be looking at?
Nov 28, 2009 at 12:47 PM
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F4I_GUY
  • ✓ASE Certified Mechanic
  • 3,302 POSTS
  • ASE Certified Mechanic
Sorry, so it doesn't blow hot air? Or it doesn't blow air at all?

If it doesn't blow hot air, check to see if your heater core is plugged by touching both heater core hoses. They should both be hot when the engine is at operating temperature.
Nov 28, 2009 at 4:57 PM
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