Question about 2001 Hyundai XG300

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2001 XG300 heater fan blows, but only cold air....

The coolant is full, no leaks from heater core as far as I can tell ... the bottom of the air box ? inside under the dash (where I assume the heater fan is) is warm ... the electronic control box adjusts on the face and the temp changes on the screen, just nothing warm out of the vents.

I can change from floor to vents to defrost ... any ideas? an electric motor or fuse that may be bad???

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Most cars have a control box which is nothing more than a plastic box with flaps in it to direct the air to the appropriate duct. a lot of vehicles use vacuum to power the movement of th flap. ck for broken or leaking vacuum lines.also ck for a broken actuater arm on the box. these are ussualy made of plastic.

Posted on Sep 07, 2009

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