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Old 05-24-2010, 09:46 PM   #1
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Question a/c problem

I don't know why when I turn on my a/c on my car the a/c blower works good on normal ac switch. But when I put it in MAX a/c the blower sounds like is running fast no noises, but the stupid air doesn't come out right, I need to lower it so it can worked fine.???? I already check vacuums it looks good to me, what do I need to check?
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Old 05-25-2010, 08:45 AM   #2
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Re: a/c problem

Have you tried turning the control to "vent" when you crank the AC? Its been so long since my stangs AC has worked, im spotty as to how it used to work, but I remember always setting my controls to max A/C and Vent so it blows on my face.
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Old 05-26-2010, 12:27 AM   #3
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Re: a/c problem

Turning the switch to Max AC is supposed to open the recirculation door, in turn closing the fresh air inlet, if it's getting stuck or only partially opening for whatever reason it can mess with airflow..

By 'turning it down' do you mean turning fan speed down?

I believe the inlet inside the car for the recirc is right behind the glove box.. Couldn't hurt to see if it's opening all the way..

Also, when it's coming out funky.. check to see if there's air coming out of the defroster vents and floor vents, it's supposed to aim only at the dash vents..
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Old 05-27-2010, 12:18 PM   #4
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Re: a/c problem

Yes turning the speed fan down it works great. How do I check the inlet do I need to removed the blower.
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Old 06-02-2010, 01:47 AM   #5
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Re: a/c problem

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Originally Posted by Mustang_GT View Post
Yes turning the speed fan down it works great. How do I check the inlet do I need to removed the blower.
You shouldn't have to, just the glove box door, it's a flap that opens up right behind it

If it doesn't work on High hardly at all, but works great at other speeds you may need a blower motor resistor

While the glove box is out, it wouldn't hurt to check it! (It'll be right near the blower motor, it'll have what looks like springs mounted to it, those are the resistors, check for corrosion/damage/etc)
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Old 06-02-2010, 11:55 PM   #6
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Re: a/c problem

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Originally Posted by MonteCitan View Post
You shouldn't have to, just the glove box door, it's a flap that opens up right behind it

If it doesn't work on High hardly at all, but works great at other speeds you may need a blower motor resistor

While the glove box is out, it wouldn't hurt to check it! (It'll be right near the blower motor, it'll have what looks like springs mounted to it, those are the resistors, check for corrosion/damage/etc)
My fan would only work on the low setting, regardless of the actual setting. The problem was the blower motor resistor. It's two screws and easy to access, and when I pulled out the old one it was just destroyed.
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Old 06-16-2010, 10:30 PM   #7
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Re: a/c problem

Thanks everybody I will need to check on that
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