ANSWERS: 3
  • sounds like a bad heater core.
  • Had same problem,had heater core power flushed. Got great heat now. Cooling system should be flushed every two years.
  • OR.... Your hot/cold knob is directly connected to a damper switch(a little white plastic box) which sends a signal to the damper door itself. Have this switch replaced before winter & you should be fine. Good luck, Joe ps....This is how i fixed my '02 Taurus SE cold air problem.

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