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post #1 of 5 (permalink) Old 11-16-12, 03:26 PM Thread Starter
kjp760
 
Join Date: Feb 2009
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99 Mountaineer, climate control stuck on heat

Hello,

Two nights ago driving home, I heard a clicking sound coming from the front passenger side, behind the glove box. By the time I got home, it quit.

Today, my automatic climate control is stuck on heat. Doesn't matter where I set the temp, hot air blows. Everything else works as usual.

Anyone have any ideas? I'm wondering if there is some type of blend door switch or something that might have gone out?

Thanks in advance for the advice!

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post #2 of 5 (permalink) Old 11-16-12, 04:54 PM
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Re: 99 Mountaineer, climate control stuck on heat

The blend door is the first thing I'd check. You should be able to hear it when swinging the temp control dial.

Ever notice that there's so many high performance parts available for GM products?

Did you ever think that maybe they NEED them?
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post #3 of 5 (permalink) Old 11-25-12, 03:03 PM Thread Starter
kjp760
 
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Re: 99 Mountaineer, climate control stuck on heat

Ok thanks. This is odd, I shut off the supply of hot water, but everything still blows just as hot as before.
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post #4 of 5 (permalink) Old 11-25-12, 03:05 PM
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Re: 99 Mountaineer, climate control stuck on heat

I'll bite, how did you shut off the water?

Ever notice that there's so many high performance parts available for GM products?

Did you ever think that maybe they NEED them?
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post #5 of 5 (permalink) Old 11-26-12, 05:46 AM
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Re: 99 Mountaineer, climate control stuck on heat

The only way I used on cars over here to shut of water to heater core / matrix would be to remove heater hoses and bridge them .That way there is no way you would still get heat then .
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