Question about 1996 Cadillac DeVille

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I drive a 1996 Cad Deville, I'm having problems with, my air conditioning When I turn on air conditioning, the panel in the car, will not stay on auto stays on econo, I'm told, to reset, by taking the battery off for a few seconds, when I do this, it works fine However, in a couple of hours, it reverts back to staying on econo. I'm told, I need a new computer, is thst true?

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  • Vze6msi9 May 03, 2010

    Sounds Good, I'll try it

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Maybe not!!,,, firstly ensure that you have the ac gas topped up,, this can occure if your gas is low,, secondly get a technician with a code scanner (diagnostic tool) and have him hard reset the cars computer..

If that fails then u need a new box.

Posted on May 03, 2010

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  • Cadillac Master
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No you do not need a new computer....there are a few things that are probably wrong.

1) have the refrigerant level checked
2) have the orifice tube checked
3) have the pressure limit switches checked

Very often people make the mistake of changing out an AC controller when its not the problem.

You car's most often AC problems are what i stated above and they usually need a new compressor around 90,000 miles.


Seek a qaulified shop that has experience with the cadillac system.

Posted on May 16, 2010

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1996 CAD GOES TO THE ECON MODE I CANNOT GET THE AIR CONDITION MODE TO DISPLAY. WHAT COULD BE THE PROBLEM?


Hello Bluebear.

When this happens on the Cadillacs of that year it is low or empty on refrigerant or the low pressure cycling switch has a problem.
The reason it happens is to prevent the compressor from coming on to protect it.
Without refrigerant in the system it can't get properly lubricated and will burn out.
I would recommend the system be checked by a professional.
You will just be wasting your money on kits at auto supply stores.
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Thank you for using FixYA.
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1 Answer

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