OT: Problem with the Wife, 's AC in her SUV |
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OT: Problem with the Wife, 's AC in her SUV |
Grimstead |
Jun 20 2006, 10:18 PM
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#1
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Cheaky Monkey Group: Members Posts: 835 Joined: 20-March 05 From: Corona, Ca Member No.: 3,789 Region Association: Southern California |
I'm betting one of you geniuses can help me out so here it is.... (IMG:style_emoticons/default/smiley_notworthy.gif)
My Wife (IMG:style_emoticons/default/wub.gif) has a 1998 Ford Explorer (IMG:style_emoticons/default/icon8.gif) with the Electronic Automatic Temperature Control (EATC) that started having problems lately. With the AC on and the car medium to hard accelerating (IMG:style_emoticons/default/driving-girl.gif) the air from the front vents switches to the top defrost vents. As soon as she releases the accelerator the air switches back. I’m assuming it is a problem with either some sensor or one of the controls vacuum lines but everything looks plugged in and operating. She also noticed around the same time, that the fan does not blow as hard & the AC isn’t as cold. (IMG:style_emoticons/default/confused24.gif) Thanks in advance, Bill (IMG:style_emoticons/default/popcorn[1].gif) |
drive-ability |
Jun 20 2006, 11:15 PM
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#2
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Senior Member Group: Members Posts: 1,169 Joined: 18-March 05 From: Orange County, California Member No.: 3,782 |
I'm betting one of you geniuses can help me out so here it is.... (IMG:style_emoticons/default/smiley_notworthy.gif) My Wife (IMG:style_emoticons/default/wub.gif) has a 1998 Ford Explorer (IMG:style_emoticons/default/icon8.gif) with the Electronic Automatic Temperature Control (EATC) that started having problems lately. With the AC on and the car medium to hard accelerating (IMG:style_emoticons/default/driving-girl.gif) the air from the front vents switches to the top defrost vents. As soon as she releases the accelerator the air switches back. I’m assuming it is a problem with either some sensor or one of the controls vacuum lines but everything looks plugged in and operating. She also noticed around the same time, that the fan does not blow as hard & the AC isn’t as cold. (IMG:style_emoticons/default/confused24.gif) Thanks in advance, Bill (IMG:style_emoticons/default/popcorn[1].gif) The vent controls are powered by engine vacuum. Most all cars/trucks set up this way need a vacuum reservoir to handle extended loads where engine vacuum is concerned. In short you have a vacuum leak where the system feeds the vent controls. It is likely under the hood or in a fender well. A vacuum line off / damaged directly in line with the vent feed. The amount of vacuum needed is small, so its likely the engine still idles smooth. The leak could be under the dash but not as likely as under the hood. |
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