Heater Core Getting Hot, But No Hot Air? - Hyundai Forums : Hyundai Forum
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post #1 of 1 (permalink) Old 01-07-2006, 02:23 PM Thread Starter
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More of my heater saga. I've eliminated the temperature dial from the equation - the problem is not there - the heater core gets hot when the dial is turned to hot, and the rod connected to the heater core moves.

My heater core is getting hot, I can feel the drivers side of the box is quite hot, and the passengers side is warm. (This is a RHD car). Also - I'm just assuming this big black box is the heater core, however there are probably more parts inside, I just don't know how to *get* inside this black box.
On the drivers side I see where the air mix rod and the temp. rod go into the heater, and they are all functioning fine. The heater core is getting hot, so at least that's something - but this hot air isn't coming out the vents, the air coming out the vents is cold. So - would I be right in assuming something, somewhere is clogged?
Somebody suggested blowing compressed air into the heater core - if the heater core is getting hot, should I still try this method? If so, how do I blow hot air inside -do I have to disasemble the dash to gain access to the heater core or can I do by taking off a part in the foot wells of the driver/passenger side?
I've also noticed on the passenger side there is a vent coming out of the heater core which is quite large, I'm guessing this may be the blower motor...? Maybe I'm wrong, just a guess -but this section of the pipe is cold.
Any ideas on where the problem is, and how would I pump some compressed air into the heater core?
Also - compressed air... I have compressed air for cleaning cameras (and PC's), however the flow is pityful - where can I get sufficient flow - would a garages tyre air hose do? I'm sure they won't appreciate me using it for this purpose, but "tough sh*t paddy". []
Thanks for all the help, and any further assistance would be great - I'm a student and I can't afford to pay somebody to fix this.
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