Question about 2005 Cadillac Deville

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1996 cadillac deville

MY A/C WAS BLOWING FREEZING COLD ONE DAY, NEXT DAY IT IS HOT, AND ONLY GOES IN ECON MODE. I CHARGED THE LOW PRESSURE SERVICE PORT TO THE GREEN AREA, BUT IT IS STILL HOT AIR.

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  • rondogg0907 Jul 03, 2008

    I HAVE FILL THE FREON, RESET THE ACM CODE, AND JUMPERED THE CONNECTOR ON THE ORIFICE TUBE. WHEN I PLUG THE CONNECTOR BACK UP, WITH A/C AT FULL BLAST, I HERE AND FILL A TICK IN THE TUBE AT THE CONNECTOR, AND THE AIR COMPRESSOR TRIES TO COME ON AND OFF WITH THE SOUND SIMULTANEOUSLY.

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You need to re-fill your Freon gas, he is finished real fast...

Posted on Jul 03, 2008

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2 Answers

Why my ac in my cadillac deville 1996 blows hot air?


If your low on freon then the A/C wont come on? for a 1996 you will need to get it serviced if you havent its normal to loose 10% freon a year,

May 06, 2011 | 1996 Cadillac DeVille

1 Answer

My 96 Sedan DeVille Climate control system will not toggle between Econ and Auto Modes. It will only operate in the Econ Mode. The Auto Mode lights up when I push the button but immiediately switches...


This usually means the ac refridgerant is low. In Econ mode the ac compressor will not turn on, your car is staying in Econ to avoid damage to the compressor. If you are low on refrigerant it means you have a leak. Don't just buy a can and refil, have a professional shop check for leaks and fill the system with the proper oil and add refrigerant to the proper pressure.

Mar 07, 2011 | Cadillac DeVille Cars & Trucks

1 Answer

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.
If you would like further advise on your Cadillac's AC, please ask me in comments.

Thank you for using FixYA.
KL

Mar 07, 2011 | 1996 Cadillac DeVille

1 Answer

I have a 1996 Cadillac Sedan DeVille. This spring...


If the a/c does not engage as a result of the electronic control system in your 1996 Cadillac, the climate control system may need to be replaced.

However, if the problem is being caused by low charge of R134a in the system, have the system charged before changing that electronic part.

I have never seen a Cadillac Climate Control System do this, which leads me to believe that it may be more electronic than refrigerant pressure related.

If the refrigerant pressure was low in the system, the climate control system should still stay on 'auto' mode, I think, and simply blow warm air.

May 19, 2010 | 1996 Cadillac DeVille

1 Answer

1996 cadillac deville-auto switches to econ when turning on air


i have a 96 DeVille that did the same thing. It means your coolant tank is almost empty. It switches automaticlly to preserve based upon temp readings.

May 14, 2009 | 1996 Cadillac DeVille

1 Answer

Heat setting wont run on auto,its stuck in the economy mode


Whenever there is a measured loss of freon, compressor switch will blow and will remain on "ECON" till repaired and the computer is cleared

Mar 14, 2009 | 1996 Cadillac DeVille

1 Answer

Air Conditioning system 97 deville


Look for a high side pressure sensor. It sounds like something is tripping an A/C code.

Mar 11, 2009 | 1996 Cadillac DeVille

1 Answer

1999 Caddy Deville A/C problem


A/C systems are hard to diagnose without having access to the vehicle. One of the most common problems is undercharge (Not enough freon in the system) indicating a leak somewhere in the system. Other causes could be a burnt A/C compressor clutch fuse, defective compressor clutch, defective compressor/belt, defective High/Low pressure switches in the system, defective evaporator icing switch, defective wiring... Basically, you're better off getting the system diagnosed by a good A/C knowledgeable mechanic...

Aug 09, 2008 | 1999 Cadillac DeVille

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