Question about 2003 Hyundai Tiburon

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Heater Switch Replacement

The heater in my 2003 GT Tiburon has stopped working properly. It blows a tiny bit on level 1, and not at all on 2--4. The auto a/c comes on w/ defrost setting, but still no blowing. The dealership told me it was a "heater switch".

I found the part, I believe, on line for about $250 and want to make the repair myself, but I cannot locate a repair manual online, or any instructions on how to perform this repair. Would someone let me know how to make this repair and if I'll need any special tools (the guy at dealership says I'll need something other than a screwdriver to pop off dashboard). Thanks!

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  • miket23 Jan 27, 2009

    yeah I am having the same problem. It is very incosistent. I will do this today but will be fine tomorrow. Was yours doing the same thing?

  • miket23 May 11, 2010

    Thanks Slicktib 13. Is the blower motor easy to get to to check the wires to see if ther is a short in them. If so if you could tell me what I should look foand where it would be located would be very helpful. I think i wanna check that before buying a HVAC control unit and take the dash out

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If your unit is working on 1 and is just seeping warm air out then I don't believe it is the switch or HVAC unit. It is probably the blower motor circuit. I had the same problem when I bought by Tiburon GT. The blower worked on 3 and 4 though and eventually the blower quit altogether. Air would just seep out of the vents after that. I replaced the HVAC control unit and still no fix. So I got out my multimeter which I should have done instead of just replacing working parts and checked the blower motor and found a short in the circuit (the power wire was repaired at a prior time and the person who did it made a bad connection just crimped 2 wires together instead of soldering the points together). I repaired the bad wire and soldered it together and used heat shrink tubing to cover it, then viola I had heat and AC at all blower levels and bought the HVAC unit for no reason at all. The control unit is easy to replace. The center dash trim has four clips, 2 at the top and 2 in the bottom. Just get out a small pry bar or flathead (make sure you are careful not to mark up the vinal dash it marks easily I used cloth around the pry bar) and pry around the clips and it should pop right out. Then its just a matter of taking out 4 screws and popping the new one back in. Installation is just reverse. If it isn't a short it could also be the blower motor resistor (which is in case with the blower motor). I don't have specs right now but let me know if you need them. Replace the unit and if that doesn't work then follow the above description. Good luck.

Posted on Jan 28, 2009

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