I turn heat knob on 1,2,3 my heat works somewhat good but once I turn knob to 4 witch is high it starts to blow cool air eventually it turns into cold air what could be the problem

Asked by Feb 03, 2015 at 06:34 PM about the 1999 Honda Accord LX

Question type: Maintenance & Repair

Ive flushed the whole radiator system and
also replaced the thermostat

1 Answer

3,045

It's possibly a malfunction in the blend door, check your vacuum lines for the heater controls

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