Question about 1996 Buick LeSabre

2 Answers

1996 Buick LeSabre AC Stopped Working

Ok, I bought this car from a friend and she said one day last summer the AC just quit one day. I checked the fuse inside the car, the maxi fuses under the hood and replaced the ac relay...all good. The compressor still will not kick on. I bought a R134A Kit at the auto store. Now I have not put any in yet. I did hook up the hose with the guage just to see if there was pressure in the line (making sure it will even hold pressure that there were no leaks so to speak). It is reading about 85 psi with the car turned off. I know that once the clutch engages, the pressure will drop, but as of now it is in the red and the clutch will not engage. Any Ideas? I would like to "jump" the compressor to engage it, to see if the compressor even engages, but I have no idea what wires to jump. There is a plug in the back with 3 wires, I am taking that it is the pressure sensor and a plug on top between the pulley and the compressor with 2 wires, a green and black.

Posted by on

  • 3 more comments 
  • Shadow1989 Jun 29, 2009

    By the way, I am attempting to see if it is the compressor or not. I know that once I engage the compressor, I will get a more accurate reading on the gauge so I can tell if it needs more refridgerant or if something else is bad.

  • Shadow1989 Jun 29, 2009

    And I don't know if this is relevent or not, but my climate control does switch from heat to cold, however it will only blow out of the defrost and floor together, no matter if I put it on vent floor or defrost. Guessing it is a door acuator of some sort, not sure if that really would prevent the ac from kicking on though....never know with the newer cars....lol

  • Shadow1989 Jun 29, 2009

    ok...there is no sight glass that I can see of. Secondly, the drier only has 2 1" metal lines going to it. No sensors, switches, plugs or nothing. The only electrical plugs are the cut out as stated above, then there is a plug on the line on the back side of the compressor with a round plug and 3 wires. This is all I can find, maybe I am overlooking something...

  • Shadow1989 Jun 29, 2009

    http://198.208.187.182/internet/PartImag...




    That is the plug that is on the line behind the compressor, rockauto says it is the -


    ACDELCO Part # 155742 {#22664328}
    SENSOR,A/C REFRIG PRESS

  • Shadow1989 Jul 14, 2009

    ok...I jumped the compressor clutch plug, black wire to neg battery and the green wire to the positive. When I touch the green to the positive the clutch goes in about a millimeter, but not enough to make contact. I also checked the plug. It read 0 on the multimeter, then i turned the temp control down to 60 and the voltmeter shot up to about 12.4 volts. So this tells me that there is enough refrigerant and all the sensor are working, or it would not be sending 12 volts to the clutch coil. What would be some possibilities on why the clutch is not engaging all the way?

×

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Buick Master
  • 6,826 Answers

No this is a high side cutt out for compressor,,,,low side pressure switch is what ur looking for look on dryer it should be ther jump them 2 wires,if it kicks on add freon 85 on low side not running is about out but if the ac does work and gets cold plug sensor back up and if it doesnt work,unscrew switch and go blow it out with a air hose (compressed air)and tap it around /put it back and try it /if it doesnt fix it buy a new switch

Posted on Jun 29, 2009

  • Ronny Bennett Sr.
    Ronny Bennett Sr. Jun 29, 2009

    if u can figure out the schematic of the ac relay jump it ther to engage ac clutch an activate fans ,the switch on the rear of the compressor is high side cut out,this model uses computer to cut out copressor when under charged but try this easy and simple way first disconect neg. batt. first for about 15 slow seconds and reconect this will most likely star up the system for short while but charge up system imediately and make sure the fans come on ,,,,let me know if this fixes ur problem roniecon@gmail.com

×

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

The first thing to check is if there is enough gas. The compressor will not work when the gas is low. There is a small inspection glass on the line. This needs to be clear. If you see streaks or bubbles means the gas is low. Never mind the pressure or wiring for now, Add one can of gas and this should get that first part done.

Posted on Jun 29, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
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.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

2003 Buick LeSabre blower not working replaced both blower and resistor also fuses, worked a few days then quit.


Have you checked again for blown fuse? also check for loose or burnt connections.

Jan 06, 2015 | 2003 Buick LeSabre

1 Answer

Seized engine


The damage is been done to your engine by having the gear king the wrong place while driving your speed.

Feb 23, 2014 | Suzuki Esteem Cars & Trucks

1 Answer

2004 buick LaSaber windsheild wipers stopped working after I turned them off. Came on again for short time a few days later but soon quite again.


Try checking your wiper fuse first. If the fuse checks out, make sure the motor is running. Check to make sure no wires are burnt around the motor or loose. If the motor checks out, it could be your wiper switch.

Feb 28, 2011 | 2004 Buick LeSabre

1 Answer

Have a 1996 buick lesabre 1800 engine. The serpentine belt was replaced recently. Drove it the other day with the AC running. Shut it down in the driveway before turning off the engine. Later on went to go...


Yes the pump should turn freely it could be the output shaft bearing or the compressor is out of oil. the best bet is to get a belt that will fit everything but the air compressor this will give you time to find the money to replace the pump and repair the AC systems. by passing the A/C won't hurt anything it will allow you to run it without A/C/ till you can fix the pump.

Apr 11, 2010 | 1996 Buick LeSabre

1 Answer

1993 Buick LeSabre surges and almost dies intermittently


Check fuel rail pressure.

Add fuel to beyond 1/2 tank.

A weak fuel pump do not like to ran low on gas.


When was the last gas filter and fuel pump change?

90-120,000 miles is the typical change out.

Fuel pump like to quit on a HOT day.

Test the pressure and see is it within specification.


Good luck


Jul 08, 2009 | 1993 Buick LeSabre

1 Answer

Air conditioning blowing hot on 2002 buick lesabre ltd


Could be a number of possibilities. However, the most likely is loss of freon. The O-ring seals at a number of line connections tend to leak over time. There are other mechanical and electrical possibilities but you should first have someone check the freon charge with a set of gauges to measure the pressures. It might cost you a bit to have it tested but the pressure reading will tell you a LOT of things. In the long run it will save you money over guess-work.

Jun 24, 2009 | 2002 Buick LeSabre

1 Answer

1995 Buick Lesabre- heater blower


Notes Electronic Automatic (RPO C68)/ Dual Zone Air Conditioning (RPO CJ2) 62396444

Jan 09, 2009 | 1996 Buick LeSabre

1 Answer

06 buick lesabre a/c problem


sounds to me like blower motor bad not switch controls or blower resister need more info?

Aug 26, 2008 | 2006 Buick LeSabre

Not finding what you are looking for?
1996 Buick LeSabre Logo

836 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts

yadayada
yadayada

Level 3 Expert

75822 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8202 Answers

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

Answer questions

Manuals & User Guides

Loading...