Question about 1989 Cadillac Sedan DeVille

1 Answer

I haver a 1989 cadi. and the air condi. compressor kicks on and offa and doesn't cool

My air cond. compressor kicks on and off all the time and doesn't cool????

Posted by on

  • bcunni777 Oct 07, 2008

    I had the system checked and it is full but it still kicks on and off.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,263 Answers

If the compressor kicks on and off and doesn't cool this is the first sign of not having enough charge in the system. the a/c clutch will always kick on and off while running becuase this is dictated by the expansion valve which regulates the system, however you should have cool air about 50 degrees F for 134a at 35 psi on lowside and 130 150 psi on high side. the undercharge can becaused by degration of the 134a overtime or a leak in the system. have a certified ac tech look at the system and do a vaccum check for leaks if it holds a vaccum for 15 minutes at -29psi then there is no leak and the system just needs recharging.. please rate this

Posted on Oct 01, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My Air cond, heat and vent doesn't work at all on my car. I have replaced fuses and the blower motor. Whenever I put the new motor in it would run then blow the fuses. Could it be the compressor?


No, the compressor will NOT cause these fuses to blow. You have a SHORT in your electrical system. you have a HOT wire getting into the Ground for that system

Apr 09, 2013 | 2002 Mercury Sable

1 Answer

2002 lancer air cond serviced recently and now the compressor wont kick in


The compressor is designed not to kick in unless there is enough coolant in the system. If the air conditioner is low on coolant it will not run when the AC is turned on. If it was serviced but not sealed up correctly , the coolant may have leaked out. You will have to stop the leak and recharge it for the compressor to kick in.
Also be sure to double check the fuses on the car. Flat fuses and block fuses just in case a system was accidentally shorted.

Jan 01, 2011 | Mitsubishi Lancer Cars & Trucks

1 Answer

Air cond. Compressor doesn't turn on Is there a separate switch?


Well yes, there is a separate switch. If the A/C system is low on freon, the low pressure switch will keep the compressor from engaging to save it from damage due to no lubrication. The freon helps with lubricating the compressor. Get you a can of 134a from the parts store and add a little to see if the compressor will come on. It should come on before one can is used. Now for the freon to be gone means you have a leak. So if the can gets you cooling, try to find the leak so you can stay cool.

May 15, 2010 | 1995 Ford Taurus

1 Answer

Condenser Fan not working when the Air Cond is On.


There is a high pressure switch on the high side of the ac system,it most likely is bad.

Apr 06, 2010 | 1996 Mercedes-Benz C-Class

1 Answer

1995 Toyota Estima. Air Cond stops cooling periodically


The air conditioning system need to be fill with gas,there is not enough gas in it that why it is doing that,Hope that help you,If there is not enough gas ,when you switch on the ac button it turns the ac compressor and cut off immediately because there is not enough gas.

Jan 17, 2010 | 1995 Toyota Previa

1 Answer

My air cond ic box not function well and i can only use switch 4 for the air cond cooling coil fan speed. switch 1, 2 and 3 recently cannot function at all. before this switch 2 and 3 works like switch 1...


You need an new blower motor resistor. I guarentee it. Ive seen this a 100 times. It is located under the dash on pass side by the blower motor. one big plug going to it.

Dec 02, 2009 | 1989 Toyota Camry

1 Answer

Air cond dash light works, compressor doesn't go on.


AC's have a low freon switch that shuts off the system to protect the compressor in the advent that you have a freon leak have the system checked for a leak

May 28, 2009 | 1996 Toyota Camry

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

126 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts

yadayada
yadayada

Level 3 Expert

60960 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Cadillac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...