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AC always on?

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Old May 21, 2009 | 07:43 PM
  #1  
herman391's Avatar
herman391
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From: Leamington, Ontario
AC always on?

Lately I've noticed that when I've got my truck sent to "vent" the air that comes out of the vents is almost as cold if not as cold as the air that blows out when I have the AC turned on. I've also noticed that the accumulator/receiver-drier(whatever you want to call it) always has a healthy does of condensation on it, no matter if I've been running normal vent or AC. Does anybody know what could be causing this?

P.S I can hear my compressor clutch kicking in and out all the time, even over the radio, control **** selection doesn't matter.
 
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Old May 21, 2009 | 08:16 PM
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reddog99
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From: So. Cal.
The A/C is off in only three vent **** positions:
1) The off position (natch!).
2) The dash only position.
3) The footwell only position.

In all other positions, including defrost, the A/C is on.
 
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Old May 21, 2009 | 08:37 PM
  #3  
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heymrdj
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From: Fort Wayne, IN
Originally Posted by herman391
Lately I've noticed that when I've got my truck sent to "vent" the air that comes out of the vents is almost as cold if not as cold as the air that blows out when I have the AC turned on. I've also noticed that the accumulator/receiver-drier(whatever you want to call it) always has a healthy does of condensation on it, no matter if I've been running normal vent or AC. Does anybody know what could be causing this?

P.S I can hear my compressor clutch kicking in and out all the time, even over the radio, control **** selection doesn't matter.
Vent means it uses outside air to cool the cabin. Otherwise it recirculates and tempers cabin air.
 
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Old May 21, 2009 | 11:13 PM
  #4  
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Traxxis
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No, he's not crazy. My wife's truck has been doing this for a year, and I cannot for the life of me figure out why. I've gotten to the point where I just disconnect it during the winter, which sucks if you want to use the defroster.

What year is your truck? My wife's is a 97 2.3L/5-speed.

Stan
 
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Old May 22, 2009 | 07:10 AM
  #5  
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herman391
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Sorry, I should have mentioned earlier its a 2003 3.0 auto. I have always thought that the AC was only on when you actually set the **** to the AC or Max AC setting. Maybe I've been wrong this whole time.
 
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Old May 22, 2009 | 08:46 AM
  #6  
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Foxxy
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From: Harrington, Delaware
I noticed it with my 07 too. Crazy thing cause I like to use the combo switch..
 
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Old May 22, 2009 | 09:09 AM
  #7  
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Bear River
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From: Salt Lake City, Utah
This is not a new development, my '94 Aerostar engages the AC in the defrost positions too. This increases the longevity of the AC system. If you don't ever run the AC in the winter, the seals dry up and shrink, then your AC doesn't work anymore.
 
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