posted on Jan 27, 2009
aaangie220Rank: Wiz Rating: 79%, 38 votes
ASE mechanic: blower motor regulators go bad because of the switching between low and high speeds. some times these are under the dash and require tiny hands and lots of patience
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If it is not blowing at all your problem is with the fan. It is mounted up under the passenger side. Typically about 6 screws hold on the cover and the fan is right under it. Pretty easy fix. When the fan is out I would test it first....after thought here...did you check the fuses?
I'm confused, the heat still comes out but not on the window, are you saying the heat blow out air but not to the front glass? the air comes out on the floor but not the top of the dash for the front windsheild. if this is the problem then it sounds like the selector door is not moving. this car is listed as a 2000 daewoo. you will need to look under the dash at the heater box, you will look on both sides, from the pass/side and driverside. you will then move the selector control, this is the control that controls the location that the heat comes out of, you will locate door this way,by moving control to see if door is moving or linkage broke or if operated by actuator motor to see if motor is operating, hope this helps good day.
Quite possible a blown fuse. However there is also a blower control module located under the hood near the center of the fire wall. It bolts into the heater box assembly, not to far from the blower motor. You may have to remove the relay/fuse cover assembly to see it. They are known to short out and cause all kinds of problems. Remember though it could also be a simple fuse in that area or under the dash. The worst case here is the whole climate control system in the dash failed.
It's very likely a broken wire to one of the serveral heating pads in the seat. The next possibility is the heater module which is located under the seat.
When I fixed the heated seat on my Pontiac Bonneville, I just pulled the seat out of the car. The heated seat wires are pretty obvious when you can see under the seat. I had an obvious broken wire that shorted against the seat spring. I repaired that had had resistance in the seat circuit. It turns out that my heater module was also bad. I switched it with the passenger seat and it works fine now. The module is about $80-100.
The blower motor is located under the hood on the passengers side next to the hood hinge on the firewall. But, check your blower motor resistor first. The resistor is usually the trouble maker. It is located next to the blower motor. It should have 2 screws holding it onto the heater housing. Also an electrical connector. I sincerely hope that this will get it working again. Best wishes to ya.
I have the same problem with my 2001 Tahoe. The front blower is working, its blowing strong, but its cold air even with the temp setting as high as it can get. The rear blows hot air. The engine temp guage is at about 210ish which is close to being normal (220). I just replaced the thermostate a few months ago, I don't know if its bad again, or it I deluted the antifreeze too much and it frooze the heater core, or if the heater core just went bad. Any one know what the cause could be?