Freezing in Ohio - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 12-18-2008, 12:12 AM   #1
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Default Freezing in Ohio

I have a 1996 with digital Heat/AC controls. When car has reached operating temp, . I have no heat (blower fine) however... if I turn off car and re-start, I will have heat for approx. 20 seconds then back to cold air.

Anyone???

Jim
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Old 12-18-2008, 12:37 AM   #2
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Sounds like your air mix actuator. I believe there is a access door in the glove box to check it. You will want to see if it moves. If it needs to be replaced I was able to fine this.

http://trialsnuts.com/ecc.pdf
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Old 12-18-2008, 01:09 AM   #3
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thank you.* I will be trying this morning.

I will let you know

Last edited by jimdg206; 12-18-2008 at 01:10 AM. Reason: misspelled
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Old 12-18-2008, 10:36 AM   #4
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Pulling the glove box allows you to see through one of the dash struture support holes. Is your HVAC display flashing?
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Old 12-18-2008, 03:24 PM   #5
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yes it is. When turning on the heat/ac, it starts in AC mode and as I mentioned once the car is at temp., I can turn off for about 20 sec. of heat then you feel almost like a pressure change and it then goes back to cold. There is no noise as I thought maybe I would hear, if a door or flap closed.
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