Question about 1990 Cadillac Eldorado

2 Answers

A?C Doesn't work

I can not find the "LOW" side A/C valve to put new freon in. It is a 1990 Cadillac Eldorado

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 32 Answers

The low side port is on the dryer/accumulator located on the drivers side engine compartment by the radiator (under the air intake hose). The port sticks out facing the driver.

Posted on Jun 08, 2010

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 3,533 Answers

I do not know but try these websites to see if they have you car listed car A/C repair and fix & toubleshoot heating & A/C if all fails stop by your local library and get your hands on a Haynes auto repair manual for you car.

Posted on May 31, 2009

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

1993 Eldorado Cadillac ac compressor won't take freon. Display says compressor off, low refrigerant. How to bypass computer? Can compressor relay be jumped using paper clip? Which holes? to

Grab some refrigerant gauges and take readings. If the low side has more than 40 psi or so of pressure, the low limit switch will close and allow the compressor to run. If there is indeed low pressure causing the compressor not to run, you will need to flush the system after eliminating the source of the leak. If the a/c compressor has never been changed, it is probably the source of the leak.

Feb 18, 2015 | 1993 Cadillac Eldorado

1 Answer

How to add freon 1994 cadillac el dorado

very eazy go to parts store and buy ac kit , but first check if it requires Freon 112 or 134-a if it is 112 you'll need a conversion kit that includes an adaptor for this no matter witch one it is it is ment to go on the LOW pressure side only follow all directions and you'll soon be cool

Aug 05, 2014 | 1994 Cadillac Eldorado

1 Answer

What freon adapter needed for a 1988 cadillac eldorado

You can not get a freon adapter for any car any more since freon is outlawed and no longer available for car air conditioning systems. You will need to upgrade your system to the new refrigerant systems that are now environmentally friendly and when they do that they will replace the filler straighter valves with current ones. When i had my Eldorado converted it cost about 300 dollars by a certified shop.

May 20, 2014 | 1988 Cadillac Eldorado

1 Answer

AC runs for a few miles,then says it's low on freon and the compressor kicks off. It is not low on freon and I had a mechanic working on it for months. New compressor, dryer, orface tube, etc. Can you...

What is the pressure when the compressor running? should be between 25-35 PSI no more then that cause it wont get cold and might even say low on freon.

Apr 08, 2011 | 1988 Cadillac Eldorado

1 Answer

Car states freon low cut off a/c, how do I add freon. I am a female and do not know where to put freon in car or how.

You can pick up a can of recharge at your local auto parts store. Some states do not allow for the sale of this so don't be surprised if you find this is the case.

There are many options but the one you want has NO stop leak in it and will have a hose with a fitting already attached. Sometimes there will aslo be a gauge. The fitting will only fit on the low side fitting of the car. This fitting will be on the low pressure line which is the larger diameter of the to lines. I apologize for not knowing exactly where the fitting is.

With the car running attache the can of refrigerant to the low side fitting and open the valve on the can. Eventually the A/C compressor should start to click on and off. It will take a while for the can to empty once the compressor starts to work. You can tell when it is by shaking the can. You will feel the liquid moving around when it is full and no liquid moving when it is empty. When it is empty close the valve on the can and remove the recharge fitting from the low side fiting of the car. After the can is removed you can turn off the car. DO NOT TURN OFF THE CAR WITH THE CAN OF RECHARGE ATTACHED TO THE LOW SIDE FITTING!

Some Cadillacs require a scan tool to erase the low freon trouble code before the car will turn on the a/c compressor.

Oct 01, 2010 | 1998 Cadillac Eldorado

1 Answer

After replacing freon ac to new coolent computer will read that the collent is low and shuts down the compressor. How do I correct this or how do I reprogram the car's computer?

Disconnect the negative battery cable for 25 seconds and put it back on,then add more freon,unless you know you have put in enough,if so,remove freon,and remove the orifice tube and replace it.If this was helpful,please rate,thank you.

Jun 27, 2010 | 1991 Cadillac Eldorado

1 Answer

A/c compressor not working added freon but it

Either the system is still low of freon,or the sensor (one of them)is bad.The sensors are on the high side of the system,liquid line.If you will get on chat,I can help you with this,it will take a while,I will need to know how much freon was added.And what the system is doing,is the ac clutch engaging,etc?Ask for ronicon,when you click on chat with,type my name in,roniecon,with your text,that you are writing .

Jan 19, 2010 | 1998 Cadillac Eldorado

1 Answer

'99 cadillac eldorado, Northstar engine w/AC problem

Have you unhooked the battery since you put the freon in? If not, do it.

Jul 04, 2009 | 1999 Cadillac Eldorado

3 Answers

Type of freon used in 1990 olds cutlass supreme. new or old?

This car uses r12 freon that is the old stuff but you can have your system converted over to the 134a.

Jun 18, 2009 | 1990 Oldsmobile Cutlass Supreme Conv

Not finding what you are looking for?
1990 Cadillac Eldorado Logo

Related Topics:

134 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts


Level 3 Expert

75822 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8215 Answers

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

Answer questions

Manuals & User Guides