Mechanics

HEATER

2004 Honda Odyssey • 6 cylinder 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?
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Franxua1
December 30, 2010.



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

Tiny
HondaMike
Dec 31, 2010.
I checked that too, the heater core is fine! Its driving me crazy, I cant think of anything else!

Tiny
Franxua1
Dec 31, 2010.
IF you have hot coolant going through the heater core, then the blend door has to be the problem.