Heat not blowing to the floor vents

J

jallegra

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I am having an issue with my 2000 Grand Am GT. The issue is that I can’t get hot air to blow to the vents on the floor and its COLD… I get heat to the vents above (the ones that blows at your face and the defroster), but nothing to the bottom. A few weeks back it sounded like something fell in the dash but didn’t think anything of it.. now I’m thinking that the noise was the air diverter? How should I tackle this or explore to try and figure out and fix my problem. Where should I start? From what I read it sounds like it could be as easy as hooking up an vacuum line or replacing a vacuum switch.
Thx Joe
 
Sounds like a bad actuator/blend motor. You can get a replacement at Autozone part # 604-107, or you can try to repair it. If you remove the actuator, pry it open carefully, and inside there is a plastic gear that moves the actuator. This gear only uses about 180 degrees of rotation, so if you find a broken tooth on the gear, just remove it, and turn it 180 degrees and put it back together, and it should fix the problem.
 
okay i'll give that a look see... any suggustion on where this is located or how do i get to the actuator/blend motor... i suppose i would also be okay if it was stuck in mode so that it would only heat the floor. maybe i can rig it?
 
thx for your help but can you provide me with some guidance to locate the blender/actuator? maybe their is a way i can rig it so it only directs air to the floor rather than the top vents?
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It's located on the passenger side of the HVAC unit under the dash below, and to the right of the glove box. Part # 16 in this diagram is what you're looking for.

http://www.newgmparts.com/parts/200...teid=213815&vehicleid=1359312&diagram=FQ99060

The actuator looks like this:
4
 
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