HEATER

  • Tiny
  • franxua1
  • 2004 Honda Odyssey
  • 6 CYL
  • 2WD
  • automatic
  • 100,000 miles

My 2004 honda odyssey heater wont heat, neither the front or the back! I changed the thermostat, I purged the system, I changed the cabin air filter and still no heat, the door that changes the settings from hot to cold works fine too, and also the fans start working too soon. Any ideas on what it could be?

Thursday, December 30th, 2010 AT 7:09 PM

3 Answers

  • Tiny
  • HondaMike
  • Member

Check to see if the hose going out of the heater core is hot. If not, you have a plugged heater core.

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Friday, December 31st, 2010 AT 4:51 AM
  • Tiny
  • franxua1
  • Member

I checked that too, the heater core is fine! Its driving me crazy, I cant think of anything else!

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Friday, December 31st, 2010 AT 6:22 AM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,287 posts

IF you have hot coolant going through the heater core, then the blend door has to be the problem.

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Thursday, February 17th, 2011 AT 1:15 PM

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