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99 deville DeElegance. reset the low refrig ac off code

99 deville DeElegance. I've added r134a, but the compressor will not kick. The ac will not run in auto. Do I need to reset the code? and if so, how?

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2 Answers

How to bypass ac compressor on 99 expedition


Why would you want to bypass the compressor? Do you mean to bypass the shut off switch? If the system is low on refrigerant you can bypass the switch by removing the plug and jumping it with a paper clip. Running the system when it is low on R134A would mean it is also low on oil. I recommend adding a oil and refrigerant charge.

Jun 18, 2014 | 1999 Ford Expedition

1 Answer

Low-refrig ac off message is on


Does the AC system show normal pressure readings and maintains at least 28-32 PSI on the low side charging port?

Mar 21, 2014 | 1999 Cadillac DeVille

1 Answer

My 99 cad deville "low-refrig a/c off" message is on. added refrigerent, still not working. comp clutch is engaging, the blower is not working. please help possible problem/solution before i give up a


there are too levels for refrigerant that affect the ac compressor . one is too low which you see and the other is too much. both control pressure switches tat work the ac clutch. IT is best to have a refrigerator /air conditioner mechanic add the gas as they will check out the system for leaks which you have

Mar 21, 2014 | 1998 Cadillac DeVille

1 Answer

Replaced all A/C major components (compressor, filter-drier accumulator, and orifice tube) except condenser due to a seized compressor and failed clutch bearing. Flushed system and appeared to have no...


It sounds like you've done just about everything except to check if there is a bad or intermittent wire causing this or perhaps your low-pressure safety cutout switch is possible going bad causing the compressor to kick on and off?

Nov 01, 2013 | Lincoln Town Car Cars & Trucks

1 Answer

Why is my car giving an incorrect error?


Check or replace the pressure switch on the ac dryer. It is shutting off and not allowing the compressor to run. This based on the system having the right amount of R134A.

Apr 25, 2017 | 2001 Cadillac Eldorado

1 Answer

Hi! My 1999 Cadillac Deville for about 2 weeks started messaging low refrig-ac-off. Check engine light on!.


When you change your oil is up to you,you set the
months & miles you go. Any car with a reminder
for oil is just a gadget

You were told that your low on a/c refrigerant by the
message

Now the check light related or not has to be addressed,
by checking for codes & diagnosing the effected system

Your a/c system needs repair,not added to, only to leak out
& polute the atmosphere

Nov 14, 2012 | 1999 Cadillac DeVille

1 Answer

Im working on a1988 Cadilac deville , replaced ac compressor , accumlator , orfus tube . i also vaccumed the system , reset computer . started car filled with 134a . worked fine till i drove for bout 1mi ....


Your have a low refrigerant level. Econ staying on and service ac will stay on too. Sounds like you didnt put enough r134a in the system. How much r134a did you add? Capacity is 38 ounces(thats
with R12), and a bit less than that for r134a.

Aug 10, 2011 | 1988 Cadillac Sedan DeVille

1 Answer

I HAVE A 1998 CADILLAC DEVILLE THE A/C/ WENT OFF AND THE COMPRESSOR WENT OFF HOW DO I RESET BOTH..


OK, if the A/C system has been discharged of R134a for any length of time, the car may have to be reset by disconnecting the battery and reconnecting after a few minutes.

That's the way my 1990 Cadillac Deville is, as it's a safety measure for preventing low freon level operation of the compressor which can damage the compressor.

My 1997 Cadillac Deville Limo hasn't had any leakage issues, so I don't know if this would work on that late of a Cadillac.

After adding r134a to the low side, and if the compressor doesn't work, then this could very well be your problem.

Good luck on this repair.

Sep 16, 2010 | 1998 Cadillac DeVille

1 Answer

My cadillac concours deville say low refrigerant ac compressor off and tried to put some in is there a certain way to do it


Yes, if it is like my 1990 cadillac deville, you must first disconnect the battery for 3 or so minutes and reconnect it to clear the error message and to reset the a/c system so it will turn on when R134a is added under pressure.

Cadillac did that in 1990 so the compressor would not run without refrigerant in the system. It's a safety feature designed to save a compressor if there is a leak in the system.

If you try to add refrigerant without resetting the a/c system, then the compressor will not engage.
.

Jun 06, 2010 | 1995 Cadillac DeVille

2 Answers

On my 2003 Chevy Silverado, the A/C compressor won't kick on. Just blows out warm/hot air.


The ac system may need freon added,if the system is low,or out of freon,it will not allow the ac compressor to come on.

Apr 11, 2010 | 2003 Chevrolet Silverado 2500HD

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