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REAR HEAT WORKS FINE FRONT HEAT BLOWS COLD LINES...

  • Tiny
  • Anonymous
  • 2004 Ford Explorer
  • 80,000 miles

Rear heat works fine front heat blows cold lines to heater core are both hot. I think it has a heat riser that works on vaccum no vac at all switch inside clicks when turned on

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Tuesday, December 11th, 2012 AT 7:10 PM

1 Reply

  • Tiny
  • kristinaduffy
  • Member

I have had this same problem. It is called the blend door actuator. It is a little door inside the unit that switches back and forth from hot to cold.

The clicking noise happens because the door is still trying to open up.

I have had to replace the front and the rear blend doors on my vehicle in the past 2 years.

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Wednesday, February 13th, 2013 AT 4:46 PM

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